Home / 12,240,248,246.40-18,360,372,369.60-7,342,487,990.40

Finding the Fourth Proportional to 12,240,248,246.40, 18,360,372,369.60 and 7,342,487,990.40

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Solution

The fourth proportional to 12,240,248,246.40, 18,360,372,369.60 and 7,342,487,990.40 is: 11,013,731,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240,248,246.40 : 18,360,372,369.60 = 7,342,487,990.40 : x
  2. Step 2: Convert to fraction form
    12,240,248,246.40/18,360,372,369.60 = 7,342,487,990.40/x
  3. Step 3: Cross multiply
    12,240,248,246.40x = 18,360,372,369.60 × 7,342,487,990.40
  4. Step 4: Simplify right side
    12,240,248,246.40x = 134,810,813,623,059,972,096
  5. Step 5: Solve for x
    x = 134,810,813,623,059,972,096/12,240,248,246.40
  6. Step 6: Final answer
    x = 11,013,731,985.60

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Double scale
Find fourth proportional to 12,240,248,247.40, 18,360,372,371.10 and 7,342,487,991.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.