Home / 86,266,947.60-129,400,421.40-45,956,163.60

Finding the Fourth Proportional to 86,266,947.60, 129,400,421.40 and 45,956,163.60

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Solution

The fourth proportional to 86,266,947.60, 129,400,421.40 and 45,956,163.60 is: 68,934,245.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,266,947.60 : 129,400,421.40 = 45,956,163.60 : x
  2. Step 2: Convert to fraction form
    86,266,947.60/129,400,421.40 = 45,956,163.60/x
  3. Step 3: Cross multiply
    86,266,947.60x = 129,400,421.40 × 45,956,163.60
  4. Step 4: Simplify right side
    86,266,947.60x = 5,946,746,935,767,342
  5. Step 5: Solve for x
    x = 5,946,746,935,767,342/86,266,947.60
  6. Step 6: Final answer
    x = 68,934,245.40

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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.