Home / 442,859,200.90-664,288,801.35-258,437,364.10

Finding the Fourth Proportional to 442,859,200.90, 664,288,801.35 and 258,437,364.10

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Solution

The fourth proportional to 442,859,200.90, 664,288,801.35 and 258,437,364.10 is: 387,656,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,859,200.90 : 664,288,801.35 = 258,437,364.10 : x
  2. Step 2: Convert to fraction form
    442,859,200.90/664,288,801.35 = 258,437,364.10/x
  3. Step 3: Cross multiply
    442,859,200.90x = 664,288,801.35 × 258,437,364.10
  4. Step 4: Simplify right side
    442,859,200.90x = 171,677,046,822,042,528
  5. Step 5: Solve for x
    x = 171,677,046,822,042,528/442,859,200.90
  6. Step 6: Final answer
    x = 387,656,046.15

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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.