Home / 531,441,803.20-797,162,704.80-421,672,664.65

Finding the Fourth Proportional to 531,441,803.20, 797,162,704.80 and 421,672,664.65

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Solution

The fourth proportional to 531,441,803.20, 797,162,704.80 and 421,672,664.65 is: 632,508,996.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,441,803.20 : 797,162,704.80 = 421,672,664.65 : x
  2. Step 2: Convert to fraction form
    531,441,803.20/797,162,704.80 = 421,672,664.65/x
  3. Step 3: Cross multiply
    531,441,803.20x = 797,162,704.80 × 421,672,664.65
  4. Step 4: Simplify right side
    531,441,803.20x = 336,141,721,892,617,280
  5. Step 5: Solve for x
    x = 336,141,721,892,617,280/531,441,803.20
  6. Step 6: Final answer
    x = 632,508,996.98

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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.