Home / 15,729,071,386.11-21,711,291,326.10-12,519,868,084.26

Finding the Fourth Proportional to 15,729,071,386.11, 21,711,291,326.10 and 12,519,868,084.26

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Solution

The fourth proportional to 15,729,071,386.11, 21,711,291,326.10 and 12,519,868,084.26 is: 17,281,535,360.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,729,071,386.11 : 21,711,291,326.10 = 12,519,868,084.26 : x
  2. Step 2: Convert to fraction form
    15,729,071,386.11/21,711,291,326.10 = 12,519,868,084.26/x
  3. Step 3: Cross multiply
    15,729,071,386.11x = 21,711,291,326.10 × 12,519,868,084.26
  4. Step 4: Simplify right side
    15,729,071,386.11x = 271,822,503,341,710,344,192
  5. Step 5: Solve for x
    x = 271,822,503,341,710,344,192/15,729,071,386.11
  6. Step 6: Final answer
    x = 17,281,535,360.17

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.