Home / 142,314,157.76-196,393,705.60-77,124,061.76

Finding the Fourth Proportional to 142,314,157.76, 196,393,705.60 and 77,124,061.76

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Solution

The fourth proportional to 142,314,157.76, 196,393,705.60 and 77,124,061.76 is: 106,431,296.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,314,157.76 : 196,393,705.60 = 77,124,061.76 : x
  2. Step 2: Convert to fraction form
    142,314,157.76/196,393,705.60 = 77,124,061.76/x
  3. Step 3: Cross multiply
    142,314,157.76x = 196,393,705.60 × 77,124,061.76
  4. Step 4: Simplify right side
    142,314,157.76x = 15,146,680,279,969,658
  5. Step 5: Solve for x
    x = 15,146,680,279,969,658/142,314,157.76
  6. Step 6: Final answer
    x = 106,431,296.21

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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.