Home / 78,327,837.68-117,451,208.28-35,159,869.40

Finding the Fourth Proportional to 78,327,837.68, 117,451,208.28 and 35,159,869.40

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Solution

The fourth proportional to 78,327,837.68, 117,451,208.28 and 35,159,869.40 is: 52,721,602.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,327,837.68 : 117,451,208.28 = 35,159,869.40 : x
  2. Step 2: Convert to fraction form
    78,327,837.68/117,451,208.28 = 35,159,869.40/x
  3. Step 3: Cross multiply
    78,327,837.68x = 117,451,208.28 × 35,159,869.40
  4. Step 4: Simplify right side
    78,327,837.68x = 4,129,569,143,996,998.50
  5. Step 5: Solve for x
    x = 4,129,569,143,996,998.50/78,327,837.68
  6. Step 6: Final answer
    x = 52,721,602.77

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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.