Home / 86,154,342-129,232,638.36-28,646,613.24

Finding the Fourth Proportional to 86,154,342, 129,232,638.36 and 28,646,613.24

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Solution

The fourth proportional to 86,154,342, 129,232,638.36 and 28,646,613.24 is: 42,970,294.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,154,342 : 129,232,638.36 = 28,646,613.24 : x
  2. Step 2: Convert to fraction form
    86,154,342/129,232,638.36 = 28,646,613.24/x
  3. Step 3: Cross multiply
    86,154,342x = 129,232,638.36 × 28,646,613.24
  4. Step 4: Simplify right side
    86,154,342x = 3,702,077,409,083,707.50
  5. Step 5: Solve for x
    x = 3,702,077,409,083,707.50/86,154,342
  6. Step 6: Final answer
    x = 42,970,294.05

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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.