Home / 580,643,721.60-870,965,582.40-521,521,238.40

Finding the Fourth Proportional to 580,643,721.60, 870,965,582.40 and 521,521,238.40

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Solution

The fourth proportional to 580,643,721.60, 870,965,582.40 and 521,521,238.40 is: 782,281,857.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,643,721.60 : 870,965,582.40 = 521,521,238.40 : x
  2. Step 2: Convert to fraction form
    580,643,721.60/870,965,582.40 = 521,521,238.40/x
  3. Step 3: Cross multiply
    580,643,721.60x = 870,965,582.40 × 521,521,238.40
  4. Step 4: Simplify right side
    580,643,721.60x = 454,227,049,137,025,216
  5. Step 5: Solve for x
    x = 454,227,049,137,025,216/580,643,721.60
  6. Step 6: Final answer
    x = 782,281,857.60

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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.