Home / 103,439,145-155,159,495.28-45,915,951.72

Finding the Fourth Proportional to 103,439,145, 155,159,495.28 and 45,915,951.72

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Solution

The fourth proportional to 103,439,145, 155,159,495.28 and 45,915,951.72 is: 68,874,272.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,439,145 : 155,159,495.28 = 45,915,951.72 : x
  2. Step 2: Convert to fraction form
    103,439,145/155,159,495.28 = 45,915,951.72/x
  3. Step 3: Cross multiply
    103,439,145x = 155,159,495.28 × 45,915,951.72
  4. Step 4: Simplify right side
    103,439,145x = 7,124,295,894,176,048
  5. Step 5: Solve for x
    x = 7,124,295,894,176,048/103,439,145
  6. Step 6: Final answer
    x = 68,874,272.83

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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.