Home / 20,912,257,095.60-31,368,385,643.40-7,824,353,300.40

Finding the Fourth Proportional to 20,912,257,095.60, 31,368,385,643.40 and 7,824,353,300.40

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Solution

The fourth proportional to 20,912,257,095.60, 31,368,385,643.40 and 7,824,353,300.40 is: 11,736,529,950.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,257,095.60 : 31,368,385,643.40 = 7,824,353,300.40 : x
  2. Step 2: Convert to fraction form
    20,912,257,095.60/31,368,385,643.40 = 7,824,353,300.40/x
  3. Step 3: Cross multiply
    20,912,257,095.60x = 31,368,385,643.40 × 7,824,353,300.40
  4. Step 4: Simplify right side
    20,912,257,095.60x = 245,437,331,737,156,780,032
  5. Step 5: Solve for x
    x = 245,437,331,737,156,780,032/20,912,257,095.60
  6. Step 6: Final answer
    x = 11,736,529,950.60

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Double scale
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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.