Home / 81,587,752.12-122,381,628.18-26,985,666.70

Finding the Fourth Proportional to 81,587,752.12, 122,381,628.18 and 26,985,666.70

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Solution

The fourth proportional to 81,587,752.12, 122,381,628.18 and 26,985,666.70 is: 40,478,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,587,752.12 : 122,381,628.18 = 26,985,666.70 : x
  2. Step 2: Convert to fraction form
    81,587,752.12/122,381,628.18 = 26,985,666.70/x
  3. Step 3: Cross multiply
    81,587,752.12x = 122,381,628.18 × 26,985,666.70
  4. Step 4: Simplify right side
    81,587,752.12x = 3,302,549,828,268,807.50
  5. Step 5: Solve for x
    x = 3,302,549,828,268,807.50/81,587,752.12
  6. Step 6: Final answer
    x = 40,478,500.05

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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.