Home / 103,559,502-142,915,543.08-56,519,143.92

Finding the Fourth Proportional to 103,559,502, 142,915,543.08 and 56,519,143.92

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Solution

The fourth proportional to 103,559,502, 142,915,543.08 and 56,519,143.92 is: 77,998,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,559,502 : 142,915,543.08 = 56,519,143.92 : x
  2. Step 2: Convert to fraction form
    103,559,502/142,915,543.08 = 56,519,143.92/x
  3. Step 3: Cross multiply
    103,559,502x = 142,915,543.08 × 56,519,143.92
  4. Step 4: Simplify right side
    103,559,502x = 8,077,464,147,743,481
  5. Step 5: Solve for x
    x = 8,077,464,147,743,481/103,559,502
  6. Step 6: Final answer
    x = 77,998,290.76

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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.