Home / 242,287,319.40-363,430,979.10-145,541,437.80

Finding the Fourth Proportional to 242,287,319.40, 363,430,979.10 and 145,541,437.80

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Solution

The fourth proportional to 242,287,319.40, 363,430,979.10 and 145,541,437.80 is: 218,312,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,287,319.40 : 363,430,979.10 = 145,541,437.80 : x
  2. Step 2: Convert to fraction form
    242,287,319.40/363,430,979.10 = 145,541,437.80/x
  3. Step 3: Cross multiply
    242,287,319.40x = 363,430,979.10 × 145,541,437.80
  4. Step 4: Simplify right side
    242,287,319.40x = 52,894,267,239,275,760
  5. Step 5: Solve for x
    x = 52,894,267,239,275,760/242,287,319.40
  6. Step 6: Final answer
    x = 218,312,156.70

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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.