Home / 103,104,890.28-142,279,877.70-56,697,100.20

Finding the Fourth Proportional to 103,104,890.28, 142,279,877.70 and 56,697,100.20

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Solution

The fourth proportional to 103,104,890.28, 142,279,877.70 and 56,697,100.20 is: 78,239,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,104,890.28 : 142,279,877.70 = 56,697,100.20 : x
  2. Step 2: Convert to fraction form
    103,104,890.28/142,279,877.70 = 56,697,100.20/x
  3. Step 3: Cross multiply
    103,104,890.28x = 142,279,877.70 × 56,697,100.20
  4. Step 4: Simplify right side
    103,104,890.28x = 8,066,856,482,400,645
  5. Step 5: Solve for x
    x = 8,066,856,482,400,645/103,104,890.28
  6. Step 6: Final answer
    x = 78,239,319.79

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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.