Home / 86,031,811.20-129,047,716.80-43,033,641.60

Finding the Fourth Proportional to 86,031,811.20, 129,047,716.80 and 43,033,641.60

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Solution

The fourth proportional to 86,031,811.20, 129,047,716.80 and 43,033,641.60 is: 64,550,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,031,811.20 : 129,047,716.80 = 43,033,641.60 : x
  2. Step 2: Convert to fraction form
    86,031,811.20/129,047,716.80 = 43,033,641.60/x
  3. Step 3: Cross multiply
    86,031,811.20x = 129,047,716.80 × 43,033,641.60
  4. Step 4: Simplify right side
    86,031,811.20x = 5,553,393,194,069,499
  5. Step 5: Solve for x
    x = 5,553,393,194,069,499/86,031,811.20
  6. Step 6: Final answer
    x = 64,550,462.40

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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.