Home / 1,207,714,785.96-1,811,123,627.88-420,566,298.66

Finding the Fourth Proportional to 1,207,714,785.96, 1,811,123,627.88 and 420,566,298.66

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Solution

The fourth proportional to 1,207,714,785.96, 1,811,123,627.88 and 420,566,298.66 is: 630,693,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,714,785.96 : 1,811,123,627.88 = 420,566,298.66 : x
  2. Step 2: Convert to fraction form
    1,207,714,785.96/1,811,123,627.88 = 420,566,298.66/x
  3. Step 3: Cross multiply
    1,207,714,785.96x = 1,811,123,627.88 × 420,566,298.66
  4. Step 4: Simplify right side
    1,207,714,785.96x = 761,697,560,593,162,880
  5. Step 5: Solve for x
    x = 761,697,560,593,162,880/1,207,714,785.96
  6. Step 6: Final answer
    x = 630,693,247.65

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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.