Home / 10,369,009.30-15,553,513.95-9,781,143.70

Finding the Fourth Proportional to 10,369,009.30, 15,553,513.95 and 9,781,143.70

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Solution

The fourth proportional to 10,369,009.30, 15,553,513.95 and 9,781,143.70 is: 14,671,715.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,369,009.30 : 15,553,513.95 = 9,781,143.70 : x
  2. Step 2: Convert to fraction form
    10,369,009.30/15,553,513.95 = 9,781,143.70/x
  3. Step 3: Cross multiply
    10,369,009.30x = 15,553,513.95 × 9,781,143.70
  4. Step 4: Simplify right side
    10,369,009.30x = 152,131,154,984,904.59
  5. Step 5: Solve for x
    x = 152,131,154,984,904.59/10,369,009.30
  6. Step 6: Final answer
    x = 14,671,715.55

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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.