Home / 318,908,736.30-478,363,104.45-173,412,000.30

Finding the Fourth Proportional to 318,908,736.30, 478,363,104.45 and 173,412,000.30

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Solution

The fourth proportional to 318,908,736.30, 478,363,104.45 and 173,412,000.30 is: 260,118,000.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,908,736.30 : 478,363,104.45 = 173,412,000.30 : x
  2. Step 2: Convert to fraction form
    318,908,736.30/478,363,104.45 = 173,412,000.30/x
  3. Step 3: Cross multiply
    318,908,736.30x = 478,363,104.45 × 173,412,000.30
  4. Step 4: Simplify right side
    318,908,736.30x = 82,953,902,812,392,336
  5. Step 5: Solve for x
    x = 82,953,902,812,392,336/318,908,736.30
  6. Step 6: Final answer
    x = 260,118,000.45

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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.