Home / 386,024,269.20-532,711,006.80-221,043,725.20

Finding the Fourth Proportional to 386,024,269.20, 532,711,006.80 and 221,043,725.20

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Solution

The fourth proportional to 386,024,269.20, 532,711,006.80 and 221,043,725.20 is: 305,038,918.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,024,269.20 : 532,711,006.80 = 221,043,725.20 : x
  2. Step 2: Convert to fraction form
    386,024,269.20/532,711,006.80 = 221,043,725.20/x
  3. Step 3: Cross multiply
    386,024,269.20x = 532,711,006.80 × 221,043,725.20
  4. Step 4: Simplify right side
    386,024,269.20x = 117,752,425,398,114,528
  5. Step 5: Solve for x
    x = 117,752,425,398,114,528/386,024,269.20
  6. Step 6: Final answer
    x = 305,038,918.00

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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.