Home / 168,042,390.40-252,063,585.60-155,128,374.10

Finding the Fourth Proportional to 168,042,390.40, 252,063,585.60 and 155,128,374.10

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Solution

The fourth proportional to 168,042,390.40, 252,063,585.60 and 155,128,374.10 is: 232,692,561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,042,390.40 : 252,063,585.60 = 155,128,374.10 : x
  2. Step 2: Convert to fraction form
    168,042,390.40/252,063,585.60 = 155,128,374.10/x
  3. Step 3: Cross multiply
    168,042,390.40x = 252,063,585.60 × 155,128,374.10
  4. Step 4: Simplify right side
    168,042,390.40x = 39,102,214,203,944,168
  5. Step 5: Solve for x
    x = 39,102,214,203,944,168/168,042,390.40
  6. Step 6: Final answer
    x = 232,692,561.15

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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.