Home / 510,155,344.09-765,354,443.78-165,108,971.53

Finding the Fourth Proportional to 510,155,344.09, 765,354,443.78 and 165,108,971.53

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Solution

The fourth proportional to 510,155,344.09, 765,354,443.78 and 165,108,971.53 is: 247,702,756.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,155,344.09 : 765,354,443.78 = 165,108,971.53 : x
  2. Step 2: Convert to fraction form
    510,155,344.09/765,354,443.78 = 165,108,971.53/x
  3. Step 3: Cross multiply
    510,155,344.09x = 765,354,443.78 × 165,108,971.53
  4. Step 4: Simplify right side
    510,155,344.09x = 126,366,885,068,431,008
  5. Step 5: Solve for x
    x = 126,366,885,068,431,008/510,155,344.09
  6. Step 6: Final answer
    x = 247,702,756.68

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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.