Home / 168,497,406.40-252,746,109.60-139,775,972.80

Finding the Fourth Proportional to 168,497,406.40, 252,746,109.60 and 139,775,972.80

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Solution

The fourth proportional to 168,497,406.40, 252,746,109.60 and 139,775,972.80 is: 209,663,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,497,406.40 : 252,746,109.60 = 139,775,972.80 : x
  2. Step 2: Convert to fraction form
    168,497,406.40/252,746,109.60 = 139,775,972.80/x
  3. Step 3: Cross multiply
    168,497,406.40x = 252,746,109.60 × 139,775,972.80
  4. Step 4: Simplify right side
    168,497,406.40x = 35,327,833,340,755,420
  5. Step 5: Solve for x
    x = 35,327,833,340,755,420/168,497,406.40
  6. Step 6: Final answer
    x = 209,663,959.20

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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.