Home / 81,587,832.12-122,381,748.18-26,985,746.70

Finding the Fourth Proportional to 81,587,832.12, 122,381,748.18 and 26,985,746.70

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Solution

The fourth proportional to 81,587,832.12, 122,381,748.18 and 26,985,746.70 is: 40,478,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,587,832.12 : 122,381,748.18 = 26,985,746.70 : x
  2. Step 2: Convert to fraction form
    81,587,832.12/122,381,748.18 = 26,985,746.70/x
  3. Step 3: Cross multiply
    81,587,832.12x = 122,381,748.18 × 26,985,746.70
  4. Step 4: Simplify right side
    81,587,832.12x = 3,302,562,857,088,666
  5. Step 5: Solve for x
    x = 3,302,562,857,088,666/81,587,832.12
  6. Step 6: Final answer
    x = 40,478,620.05

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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.