Home / 265,734,007.20-398,601,010.80-122,126,839.20

Finding the Fourth Proportional to 265,734,007.20, 398,601,010.80 and 122,126,839.20

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Solution

The fourth proportional to 265,734,007.20, 398,601,010.80 and 122,126,839.20 is: 183,190,258.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,734,007.20 : 398,601,010.80 = 122,126,839.20 : x
  2. Step 2: Convert to fraction form
    265,734,007.20/398,601,010.80 = 122,126,839.20/x
  3. Step 3: Cross multiply
    265,734,007.20x = 398,601,010.80 × 122,126,839.20
  4. Step 4: Simplify right side
    265,734,007.20x = 48,679,881,550,929,064
  5. Step 5: Solve for x
    x = 48,679,881,550,929,064/265,734,007.20
  6. Step 6: Final answer
    x = 183,190,258.80

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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.