Home / 690,608,401.20-1,035,030,803.40-281,202,001.20

Finding the Fourth Proportional to 690,608,401.20, 1,035,030,803.40 and 281,202,001.20

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Solution

The fourth proportional to 690,608,401.20, 1,035,030,803.40 and 281,202,001.20 is: 421,443,951.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,608,401.20 : 1,035,030,803.40 = 281,202,001.20 : x
  2. Step 2: Convert to fraction form
    690,608,401.20/1,035,030,803.40 = 281,202,001.20/x
  3. Step 3: Cross multiply
    690,608,401.20x = 1,035,030,803.40 × 281,202,001.20
  4. Step 4: Simplify right side
    690,608,401.20x = 291,052,733,219,723,776
  5. Step 5: Solve for x
    x = 291,052,733,219,723,776/690,608,401.20
  6. Step 6: Final answer
    x = 421,443,951.04

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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.