Home / 700,145,490.10-966,255,854.28-398,743,545.82

Finding the Fourth Proportional to 700,145,490.10, 966,255,854.28 and 398,743,545.82

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Solution

The fourth proportional to 700,145,490.10, 966,255,854.28 and 398,743,545.82 is: 550,297,460.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,145,490.10 : 966,255,854.28 = 398,743,545.82 : x
  2. Step 2: Convert to fraction form
    700,145,490.10/966,255,854.28 = 398,743,545.82/x
  3. Step 3: Cross multiply
    700,145,490.10x = 966,255,854.28 × 398,743,545.82
  4. Step 4: Simplify right side
    700,145,490.10x = 385,288,285,504,940,416
  5. Step 5: Solve for x
    x = 385,288,285,504,940,416/700,145,490.10
  6. Step 6: Final answer
    x = 550,297,460.96

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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.