Home / 103,257,641.52-142,490,135.76-56,838,828.96

Finding the Fourth Proportional to 103,257,641.52, 142,490,135.76 and 56,838,828.96

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Solution

The fourth proportional to 103,257,641.52, 142,490,135.76 and 56,838,828.96 is: 78,434,606.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,257,641.52 : 142,490,135.76 = 56,838,828.96 : x
  2. Step 2: Convert to fraction form
    103,257,641.52/142,490,135.76 = 56,838,828.96/x
  3. Step 3: Cross multiply
    103,257,641.52x = 142,490,135.76 × 56,838,828.96
  4. Step 4: Simplify right side
    103,257,641.52x = 8,098,972,454,949,819
  5. Step 5: Solve for x
    x = 8,098,972,454,949,819/103,257,641.52
  6. Step 6: Final answer
    x = 78,434,606.25

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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.