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Finding the Fourth Proportional to 688,652,854.80, 950,333,204.19 and 375,380,195.10

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Solution

The fourth proportional to 688,652,854.80, 950,333,204.19 and 375,380,195.10 is: 518,020,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,652,854.80 : 950,333,204.19 = 375,380,195.10 : x
  2. Step 2: Convert to fraction form
    688,652,854.80/950,333,204.19 = 375,380,195.10/x
  3. Step 3: Cross multiply
    688,652,854.80x = 950,333,204.19 × 375,380,195.10
  4. Step 4: Simplify right side
    688,652,854.80x = 356,736,263,598,850,368
  5. Step 5: Solve for x
    x = 356,736,263,598,850,368/688,652,854.80
  6. Step 6: Final answer
    x = 518,020,452.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.