Home / 177,959,639.10-266,939,458.65-139,739,043.90

Finding the Fourth Proportional to 177,959,639.10, 266,939,458.65 and 139,739,043.90

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Solution

The fourth proportional to 177,959,639.10, 266,939,458.65 and 139,739,043.90 is: 209,608,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,959,639.10 : 266,939,458.65 = 139,739,043.90 : x
  2. Step 2: Convert to fraction form
    177,959,639.10/266,939,458.65 = 139,739,043.90/x
  3. Step 3: Cross multiply
    177,959,639.10x = 266,939,458.65 × 139,739,043.90
  4. Step 4: Simplify right side
    177,959,639.10x = 37,301,864,730,934,584
  5. Step 5: Solve for x
    x = 37,301,864,730,934,584/177,959,639.10
  6. Step 6: Final answer
    x = 209,608,565.85

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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.