Home / 442,764,000.80-664,146,001.20-339,451,870.40

Finding the Fourth Proportional to 442,764,000.80, 664,146,001.20 and 339,451,870.40

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Solution

The fourth proportional to 442,764,000.80, 664,146,001.20 and 339,451,870.40 is: 509,177,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,764,000.80 : 664,146,001.20 = 339,451,870.40 : x
  2. Step 2: Convert to fraction form
    442,764,000.80/664,146,001.20 = 339,451,870.40/x
  3. Step 3: Cross multiply
    442,764,000.80x = 664,146,001.20 × 339,451,870.40
  4. Step 4: Simplify right side
    442,764,000.80x = 225,445,602,326,020,640
  5. Step 5: Solve for x
    x = 225,445,602,326,020,640/442,764,000.80
  6. Step 6: Final answer
    x = 509,177,805.60

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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.