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Finding the Fourth Proportional to 418,662,315.50, 577,743,435.75 and 230,488,730.78

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Solution

The fourth proportional to 418,662,315.50, 577,743,435.75 and 230,488,730.78 is: 318,068,635.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,662,315.50 : 577,743,435.75 = 230,488,730.78 : x
  2. Step 2: Convert to fraction form
    418,662,315.50/577,743,435.75 = 230,488,730.78/x
  3. Step 3: Cross multiply
    418,662,315.50x = 577,743,435.75 × 230,488,730.78
  4. Step 4: Simplify right side
    418,662,315.50x = 133,163,351,218,452,816
  5. Step 5: Solve for x
    x = 133,163,351,218,452,816/418,662,315.50
  6. Step 6: Final answer
    x = 318,068,635.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.