Home / 700,145,488.10-966,255,851.52-398,743,543.82

Finding the Fourth Proportional to 700,145,488.10, 966,255,851.52 and 398,743,543.82

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Solution

The fourth proportional to 700,145,488.10, 966,255,851.52 and 398,743,543.82 is: 550,297,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,145,488.10 : 966,255,851.52 = 398,743,543.82 : x
  2. Step 2: Convert to fraction form
    700,145,488.10/966,255,851.52 = 398,743,543.82/x
  3. Step 3: Cross multiply
    700,145,488.10x = 966,255,851.52 × 398,743,543.82
  4. Step 4: Simplify right side
    700,145,488.10x = 385,288,282,471,896,512
  5. Step 5: Solve for x
    x = 385,288,282,471,896,512/700,145,488.10
  6. Step 6: Final answer
    x = 550,297,458.20

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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.