Home / 103,438,952-155,159,205.60-45,915,758.72

Finding the Fourth Proportional to 103,438,952, 155,159,205.60 and 45,915,758.72

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Solution

The fourth proportional to 103,438,952, 155,159,205.60 and 45,915,758.72 is: 68,873,983.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,438,952 : 155,159,205.60 = 45,915,758.72 : x
  2. Step 2: Convert to fraction form
    103,438,952/155,159,205.60 = 45,915,758.72/x
  3. Step 3: Cross multiply
    103,438,952x = 155,159,205.60 × 45,915,758.72
  4. Step 4: Simplify right side
    103,438,952x = 7,124,252,647,516,472
  5. Step 5: Solve for x
    x = 7,124,252,647,516,472/103,438,952
  6. Step 6: Final answer
    x = 68,873,983.25

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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.