Home / 20,912,257,497.60-31,368,386,246.40-7,824,353,702.40

Finding the Fourth Proportional to 20,912,257,497.60, 31,368,386,246.40 and 7,824,353,702.40

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Solution

The fourth proportional to 20,912,257,497.60, 31,368,386,246.40 and 7,824,353,702.40 is: 11,736,530,553.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912,257,497.60 : 31,368,386,246.40 = 7,824,353,702.40 : x
  2. Step 2: Convert to fraction form
    20,912,257,497.60/31,368,386,246.40 = 7,824,353,702.40/x
  3. Step 3: Cross multiply
    20,912,257,497.60x = 31,368,386,246.40 × 7,824,353,702.40
  4. Step 4: Simplify right side
    20,912,257,497.60x = 245,437,349,065,333,080,064
  5. Step 5: Solve for x
    x = 245,437,349,065,333,080,064/20,912,257,497.60
  6. Step 6: Final answer
    x = 11,736,530,553.60

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Double scale
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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.