Home / 510,154,981.71-765,353,898.44-165,108,609.15

Finding the Fourth Proportional to 510,154,981.71, 765,353,898.44 and 165,108,609.15

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Solution

The fourth proportional to 510,154,981.71, 765,353,898.44 and 165,108,609.15 is: 247,702,212.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,154,981.71 : 765,353,898.44 = 165,108,609.15 : x
  2. Step 2: Convert to fraction form
    510,154,981.71/765,353,898.44 = 165,108,609.15/x
  3. Step 3: Cross multiply
    510,154,981.71x = 765,353,898.44 × 165,108,609.15
  4. Step 4: Simplify right side
    510,154,981.71x = 126,366,517,678,958,768
  5. Step 5: Solve for x
    x = 126,366,517,678,958,768/510,154,981.71
  6. Step 6: Final answer
    x = 247,702,212.48

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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.