Home / 186,786,877.60-279,802,402.80-129,344,010.40

Finding the Fourth Proportional to 186,786,877.60, 279,802,402.80 and 129,344,010.40

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Solution

The fourth proportional to 186,786,877.60, 279,802,402.80 and 129,344,010.40 is: 193,754,322.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,786,877.60 : 279,802,402.80 = 129,344,010.40 : x
  2. Step 2: Convert to fraction form
    186,786,877.60/279,802,402.80 = 129,344,010.40/x
  3. Step 3: Cross multiply
    186,786,877.60x = 279,802,402.80 × 129,344,010.40
  4. Step 4: Simplify right side
    186,786,877.60x = 36,190,764,897,708,192
  5. Step 5: Solve for x
    x = 36,190,764,897,708,192/186,786,877.60
  6. Step 6: Final answer
    x = 193,754,322.37

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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.