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Finding the Fourth Proportional to 272,865,389.70, 409,298,084.55 and 136,501,565.70

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Solution

The fourth proportional to 272,865,389.70, 409,298,084.55 and 136,501,565.70 is: 204,752,348.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,865,389.70 : 409,298,084.55 = 136,501,565.70 : x
  2. Step 2: Convert to fraction form
    272,865,389.70/409,298,084.55 = 136,501,565.70/x
  3. Step 3: Cross multiply
    272,865,389.70x = 409,298,084.55 × 136,501,565.70
  4. Step 4: Simplify right side
    272,865,389.70x = 55,869,829,379,085,976
  5. Step 5: Solve for x
    x = 55,869,829,379,085,976/272,865,389.70
  6. Step 6: Final answer
    x = 204,752,348.55

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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.