Home / 442,872,020.40-664,308,030.60-410,623,393.20

Finding the Fourth Proportional to 442,872,020.40, 664,308,030.60 and 410,623,393.20

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Solution

The fourth proportional to 442,872,020.40, 664,308,030.60 and 410,623,393.20 is: 615,935,089.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,872,020.40 : 664,308,030.60 = 410,623,393.20 : x
  2. Step 2: Convert to fraction form
    442,872,020.40/664,308,030.60 = 410,623,393.20/x
  3. Step 3: Cross multiply
    442,872,020.40x = 664,308,030.60 × 410,623,393.20
  4. Step 4: Simplify right side
    442,872,020.40x = 272,780,417,654,981,440
  5. Step 5: Solve for x
    x = 272,780,417,654,981,440/442,872,020.40
  6. Step 6: Final answer
    x = 615,935,089.80

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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.