Home / 149,769,640.80-224,654,461.20-85,272,386.40

Finding the Fourth Proportional to 149,769,640.80, 224,654,461.20 and 85,272,386.40

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Solution

The fourth proportional to 149,769,640.80, 224,654,461.20 and 85,272,386.40 is: 127,908,579.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,769,640.80 : 224,654,461.20 = 85,272,386.40 : x
  2. Step 2: Convert to fraction form
    149,769,640.80/224,654,461.20 = 85,272,386.40/x
  3. Step 3: Cross multiply
    149,769,640.80x = 224,654,461.20 × 85,272,386.40
  4. Step 4: Simplify right side
    149,769,640.80x = 19,156,822,021,930,208
  5. Step 5: Solve for x
    x = 19,156,822,021,930,208/149,769,640.80
  6. Step 6: Final answer
    x = 127,908,579.60

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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.