Home / 179,869,205.78-269,785,651.10-121,948,779.80

Finding the Fourth Proportional to 179,869,205.78, 269,785,651.10 and 121,948,779.80

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Solution

The fourth proportional to 179,869,205.78, 269,785,651.10 and 121,948,779.80 is: 182,910,859.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,869,205.78 : 269,785,651.10 = 121,948,779.80 : x
  2. Step 2: Convert to fraction form
    179,869,205.78/269,785,651.10 = 121,948,779.80/x
  3. Step 3: Cross multiply
    179,869,205.78x = 269,785,651.10 × 121,948,779.80
  4. Step 4: Simplify right side
    179,869,205.78x = 32,900,030,959,193,528
  5. Step 5: Solve for x
    x = 32,900,030,959,193,528/179,869,205.78
  6. Step 6: Final answer
    x = 182,910,859.12

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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.