Home / 1,290,859,545.32-1,932,281,278.36-699,180,298.44

Finding the Fourth Proportional to 1,290,859,545.32, 1,932,281,278.36 and 699,180,298.44

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Solution

The fourth proportional to 1,290,859,545.32, 1,932,281,278.36 and 699,180,298.44 is: 1,046,599,535.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,859,545.32 : 1,932,281,278.36 = 699,180,298.44 : x
  2. Step 2: Convert to fraction form
    1,290,859,545.32/1,932,281,278.36 = 699,180,298.44/x
  3. Step 3: Cross multiply
    1,290,859,545.32x = 1,932,281,278.36 × 699,180,298.44
  4. Step 4: Simplify right side
    1,290,859,545.32x = 1,351,013,000,873,769,472
  5. Step 5: Solve for x
    x = 1,351,013,000,873,769,472/1,290,859,545.32
  6. Step 6: Final answer
    x = 1,046,599,535.77

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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.