Home / 143,729,941,082.76-198,334,007,876.34-79,499,282,967.72

Finding the Fourth Proportional to 143,729,941,082.76, 198,334,007,876.34 and 79,499,282,967.72

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Solution

The fourth proportional to 143,729,941,082.76, 198,334,007,876.34 and 79,499,282,967.72 is: 109,701,648,073.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,729,941,082.76 : 198,334,007,876.34 = 79,499,282,967.72 : x
  2. Step 2: Convert to fraction form
    143,729,941,082.76/198,334,007,876.34 = 79,499,282,967.72/x
  3. Step 3: Cross multiply
    143,729,941,082.76x = 198,334,007,876.34 × 79,499,282,967.72
  4. Step 4: Simplify right side
    143,729,941,082.76x = 15,767,411,414,283,159,863,296
  5. Step 5: Solve for x
    x = 15,767,411,414,283,159,863,296/143,729,941,082.76
  6. Step 6: Final answer
    x = 109,701,648,073.48

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Double scale
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1.5x scale

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.