Home / 168,151,411.40-252,227,117.10-77,275,000.40

Finding the Fourth Proportional to 168,151,411.40, 252,227,117.10 and 77,275,000.40

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Solution

The fourth proportional to 168,151,411.40, 252,227,117.10 and 77,275,000.40 is: 115,912,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,151,411.40 : 252,227,117.10 = 77,275,000.40 : x
  2. Step 2: Convert to fraction form
    168,151,411.40/252,227,117.10 = 77,275,000.40/x
  3. Step 3: Cross multiply
    168,151,411.40x = 252,227,117.10 × 77,275,000.40
  4. Step 4: Simplify right side
    168,151,411.40x = 19,490,850,574,793,348
  5. Step 5: Solve for x
    x = 19,490,850,574,793,348/168,151,411.40
  6. Step 6: Final answer
    x = 115,912,500.60

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1.5x scale

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.