Home / 510,374,830.29-765,525,214.04-199,423,977.81

Finding the Fourth Proportional to 510,374,830.29, 765,525,214.04 and 199,423,977.81

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Solution

The fourth proportional to 510,374,830.29, 765,525,214.04 and 199,423,977.81 is: 299,121,497.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,374,830.29 : 765,525,214.04 = 199,423,977.81 : x
  2. Step 2: Convert to fraction form
    510,374,830.29/765,525,214.04 = 199,423,977.81/x
  3. Step 3: Cross multiply
    510,374,830.29x = 765,525,214.04 × 199,423,977.81
  4. Step 4: Simplify right side
    510,374,830.29x = 152,664,083,296,711,328
  5. Step 5: Solve for x
    x = 152,664,083,296,711,328/510,374,830.29
  6. Step 6: Final answer
    x = 299,121,497.06

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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.