Home / 432,902,620.80-649,353,931.20-402,291,619.20

Finding the Fourth Proportional to 432,902,620.80, 649,353,931.20 and 402,291,619.20

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Solution

The fourth proportional to 432,902,620.80, 649,353,931.20 and 402,291,619.20 is: 603,437,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,902,620.80 : 649,353,931.20 = 402,291,619.20 : x
  2. Step 2: Convert to fraction form
    432,902,620.80/649,353,931.20 = 402,291,619.20/x
  3. Step 3: Cross multiply
    432,902,620.80x = 649,353,931.20 × 402,291,619.20
  4. Step 4: Simplify right side
    432,902,620.80x = 261,229,644,416,333,408
  5. Step 5: Solve for x
    x = 261,229,644,416,333,408/432,902,620.80
  6. Step 6: Final answer
    x = 603,437,428.80

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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.