Home / 442,866,023.40-664,299,035.10-399,028,045.80

Finding the Fourth Proportional to 442,866,023.40, 664,299,035.10 and 399,028,045.80

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Solution

The fourth proportional to 442,866,023.40, 664,299,035.10 and 399,028,045.80 is: 598,542,068.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,866,023.40 : 664,299,035.10 = 399,028,045.80 : x
  2. Step 2: Convert to fraction form
    442,866,023.40/664,299,035.10 = 399,028,045.80/x
  3. Step 3: Cross multiply
    442,866,023.40x = 664,299,035.10 × 399,028,045.80
  4. Step 4: Simplify right side
    442,866,023.40x = 265,073,945,802,778,624
  5. Step 5: Solve for x
    x = 265,073,945,802,778,624/442,866,023.40
  6. Step 6: Final answer
    x = 598,542,068.70

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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.