Home / 230,919,449.40-318,548,024.46-142,785,273.96

Finding the Fourth Proportional to 230,919,449.40, 318,548,024.46 and 142,785,273.96

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Solution

The fourth proportional to 230,919,449.40, 318,548,024.46 and 142,785,273.96 is: 196,968,973.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,919,449.40 : 318,548,024.46 = 142,785,273.96 : x
  2. Step 2: Convert to fraction form
    230,919,449.40/318,548,024.46 = 142,785,273.96/x
  3. Step 3: Cross multiply
    230,919,449.40x = 318,548,024.46 × 142,785,273.96
  4. Step 4: Simplify right side
    230,919,449.40x = 45,483,966,941,937,880
  5. Step 5: Solve for x
    x = 45,483,966,941,937,880/230,919,449.40
  6. Step 6: Final answer
    x = 196,968,973.64

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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.