Home / 77,609,165.20-116,413,747.80-66,068,038.16

Finding the Fourth Proportional to 77,609,165.20, 116,413,747.80 and 66,068,038.16

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Solution

The fourth proportional to 77,609,165.20, 116,413,747.80 and 66,068,038.16 is: 99,102,057.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,609,165.20 : 116,413,747.80 = 66,068,038.16 : x
  2. Step 2: Convert to fraction form
    77,609,165.20/116,413,747.80 = 66,068,038.16/x
  3. Step 3: Cross multiply
    77,609,165.20x = 116,413,747.80 × 66,068,038.16
  4. Step 4: Simplify right side
    77,609,165.20x = 7,691,227,931,999,015
  5. Step 5: Solve for x
    x = 7,691,227,931,999,015/77,609,165.20
  6. Step 6: Final answer
    x = 99,102,057.24

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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.