Home / 168,497,415.90-252,746,123.85-139,775,982.30

Finding the Fourth Proportional to 168,497,415.90, 252,746,123.85 and 139,775,982.30

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Solution

The fourth proportional to 168,497,415.90, 252,746,123.85 and 139,775,982.30 is: 209,663,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,497,415.90 : 252,746,123.85 = 139,775,982.30 : x
  2. Step 2: Convert to fraction form
    168,497,415.90/252,746,123.85 = 139,775,982.30/x
  3. Step 3: Cross multiply
    168,497,415.90x = 252,746,123.85 × 139,775,982.30
  4. Step 4: Simplify right side
    168,497,415.90x = 35,327,837,733,651,212
  5. Step 5: Solve for x
    x = 35,327,837,733,651,212/168,497,415.90
  6. Step 6: Final answer
    x = 209,663,973.45

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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.