Home / 153,743,132.80-230,496,601.20-77,121,150.40

Finding the Fourth Proportional to 153,743,132.80, 230,496,601.20 and 77,121,150.40

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Solution

The fourth proportional to 153,743,132.80, 230,496,601.20 and 77,121,150.40 is: 115,622,484.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,743,132.80 : 230,496,601.20 = 77,121,150.40 : x
  2. Step 2: Convert to fraction form
    153,743,132.80/230,496,601.20 = 77,121,150.40/x
  3. Step 3: Cross multiply
    153,743,132.80x = 230,496,601.20 × 77,121,150.40
  4. Step 4: Simplify right side
    153,743,132.80x = 17,776,163,047,834,020
  5. Step 5: Solve for x
    x = 17,776,163,047,834,020/153,743,132.80
  6. Step 6: Final answer
    x = 115,622,484.88

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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.