Home / 442,869,686.60-664,304,529.90-328,078,430.60

Finding the Fourth Proportional to 442,869,686.60, 664,304,529.90 and 328,078,430.60

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Solution

The fourth proportional to 442,869,686.60, 664,304,529.90 and 328,078,430.60 is: 492,117,645.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,869,686.60 : 664,304,529.90 = 328,078,430.60 : x
  2. Step 2: Convert to fraction form
    442,869,686.60/664,304,529.90 = 328,078,430.60/x
  3. Step 3: Cross multiply
    442,869,686.60x = 664,304,529.90 × 328,078,430.60
  4. Step 4: Simplify right side
    442,869,686.60x = 217,943,987,610,062,784
  5. Step 5: Solve for x
    x = 217,943,987,610,062,784/442,869,686.60
  6. Step 6: Final answer
    x = 492,117,645.90

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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.