Home / 265,790,465.80-398,760,348.30-129,480,296.20

Finding the Fourth Proportional to 265,790,465.80, 398,760,348.30 and 129,480,296.20

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Solution

The fourth proportional to 265,790,465.80, 398,760,348.30 and 129,480,296.20 is: 194,256,809.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,790,465.80 : 398,760,348.30 = 129,480,296.20 : x
  2. Step 2: Convert to fraction form
    265,790,465.80/398,760,348.30 = 129,480,296.20/x
  3. Step 3: Cross multiply
    265,790,465.80x = 398,760,348.30 × 129,480,296.20
  4. Step 4: Simplify right side
    265,790,465.80x = 51,631,608,010,699,168
  5. Step 5: Solve for x
    x = 51,631,608,010,699,168/265,790,465.80
  6. Step 6: Final answer
    x = 194,256,809.98

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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.