Home / 630,405,812.40-944,333,260.20-436,536,135.60

Finding the Fourth Proportional to 630,405,812.40, 944,333,260.20 and 436,536,135.60

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Solution

The fourth proportional to 630,405,812.40, 944,333,260.20 and 436,536,135.60 is: 653,920,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,405,812.40 : 944,333,260.20 = 436,536,135.60 : x
  2. Step 2: Convert to fraction form
    630,405,812.40/944,333,260.20 = 436,536,135.60/x
  3. Step 3: Cross multiply
    630,405,812.40x = 944,333,260.20 × 436,536,135.60
  4. Step 4: Simplify right side
    630,405,812.40x = 412,235,592,126,257,344
  5. Step 5: Solve for x
    x = 412,235,592,126,257,344/630,405,812.40
  6. Step 6: Final answer
    x = 653,920,988.70

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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.