Home / 86,154,344-129,232,641.36-28,646,615.24

Finding the Fourth Proportional to 86,154,344, 129,232,641.36 and 28,646,615.24

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Solution

The fourth proportional to 86,154,344, 129,232,641.36 and 28,646,615.24 is: 42,970,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,154,344 : 129,232,641.36 = 28,646,615.24 : x
  2. Step 2: Convert to fraction form
    86,154,344/129,232,641.36 = 28,646,615.24/x
  3. Step 3: Cross multiply
    86,154,344x = 129,232,641.36 × 28,646,615.24
  4. Step 4: Simplify right side
    86,154,344x = 3,702,077,753,488,830
  5. Step 5: Solve for x
    x = 3,702,077,753,488,830/86,154,344
  6. Step 6: Final answer
    x = 42,970,297.05

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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.