Home / 117,252,002.80-175,878,004.20-86,641,001.20

Finding the Fourth Proportional to 117,252,002.80, 175,878,004.20 and 86,641,001.20

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Solution

The fourth proportional to 117,252,002.80, 175,878,004.20 and 86,641,001.20 is: 129,961,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,252,002.80 : 175,878,004.20 = 86,641,001.20 : x
  2. Step 2: Convert to fraction form
    117,252,002.80/175,878,004.20 = 86,641,001.20/x
  3. Step 3: Cross multiply
    117,252,002.80x = 175,878,004.20 × 86,641,001.20
  4. Step 4: Simplify right side
    117,252,002.80x = 15,238,246,372,945,804
  5. Step 5: Solve for x
    x = 15,238,246,372,945,804/117,252,002.80
  6. Step 6: Final answer
    x = 129,961,501.80

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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.