Home / 86,291,570.80-129,437,356.20-74,702,220.40

Finding the Fourth Proportional to 86,291,570.80, 129,437,356.20 and 74,702,220.40

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Solution

The fourth proportional to 86,291,570.80, 129,437,356.20 and 74,702,220.40 is: 112,053,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,291,570.80 : 129,437,356.20 = 74,702,220.40 : x
  2. Step 2: Convert to fraction form
    86,291,570.80/129,437,356.20 = 74,702,220.40/x
  3. Step 3: Cross multiply
    86,291,570.80x = 129,437,356.20 × 74,702,220.40
  4. Step 4: Simplify right side
    86,291,570.80x = 9,669,257,910,845,708
  5. Step 5: Solve for x
    x = 9,669,257,910,845,708/86,291,570.80
  6. Step 6: Final answer
    x = 112,053,330.60

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1.5x scale

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.