Home / 261,056,077.40-391,584,116.10-140,123,725.40

Finding the Fourth Proportional to 261,056,077.40, 391,584,116.10 and 140,123,725.40

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Solution

The fourth proportional to 261,056,077.40, 391,584,116.10 and 140,123,725.40 is: 210,185,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,056,077.40 : 391,584,116.10 = 140,123,725.40 : x
  2. Step 2: Convert to fraction form
    261,056,077.40/391,584,116.10 = 140,123,725.40/x
  3. Step 3: Cross multiply
    261,056,077.40x = 391,584,116.10 × 140,123,725.40
  4. Step 4: Simplify right side
    261,056,077.40x = 54,870,225,155,398,128
  5. Step 5: Solve for x
    x = 54,870,225,155,398,128/261,056,077.40
  6. Step 6: Final answer
    x = 210,185,588.10

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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.