Home / 86,630,279.88-129,944,195.34-21,051,899.67

Finding the Fourth Proportional to 86,630,279.88, 129,944,195.34 and 21,051,899.67

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Solution

The fourth proportional to 86,630,279.88, 129,944,195.34 and 21,051,899.67 is: 31,577,551.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,630,279.88 : 129,944,195.34 = 21,051,899.67 : x
  2. Step 2: Convert to fraction form
    86,630,279.88/129,944,195.34 = 21,051,899.67/x
  3. Step 3: Cross multiply
    86,630,279.88x = 129,944,195.34 × 21,051,899.67
  4. Step 4: Simplify right side
    86,630,279.88x = 2,735,572,162,996,562
  5. Step 5: Solve for x
    x = 2,735,572,162,996,562/86,630,279.88
  6. Step 6: Final answer
    x = 31,577,551.95

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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.