Home / 747,503,581.20-1,120,648,345.65-311,130,900.15

Finding the Fourth Proportional to 747,503,581.20, 1,120,648,345.65 and 311,130,900.15

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Solution

The fourth proportional to 747,503,581.20, 1,120,648,345.65 and 311,130,900.15 is: 466,443,689.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,503,581.20 : 1,120,648,345.65 = 311,130,900.15 : x
  2. Step 2: Convert to fraction form
    747,503,581.20/1,120,648,345.65 = 311,130,900.15/x
  3. Step 3: Cross multiply
    747,503,581.20x = 1,120,648,345.65 × 311,130,900.15
  4. Step 4: Simplify right side
    747,503,581.20x = 348,668,328,533,692,864
  5. Step 5: Solve for x
    x = 348,668,328,533,692,864/747,503,581.20
  6. Step 6: Final answer
    x = 466,443,689.77

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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.