Home / 103,373,628.48-142,656,564-56,965,543.20

Finding the Fourth Proportional to 103,373,628.48, 142,656,564 and 56,965,543.20

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Solution

The fourth proportional to 103,373,628.48, 142,656,564 and 56,965,543.20 is: 78,612,976.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,373,628.48 : 142,656,564 = 56,965,543.20 : x
  2. Step 2: Convert to fraction form
    103,373,628.48/142,656,564 = 56,965,543.20/x
  3. Step 3: Cross multiply
    103,373,628.48x = 142,656,564 × 56,965,543.20
  4. Step 4: Simplify right side
    103,373,628.48x = 8,126,508,659,305,565
  5. Step 5: Solve for x
    x = 8,126,508,659,305,565/103,373,628.48
  6. Step 6: Final answer
    x = 78,612,976.82

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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.