Home / 779,770,407.20-1,169,655,610.80-657,326,400.80

Finding the Fourth Proportional to 779,770,407.20, 1,169,655,610.80 and 657,326,400.80

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Solution

The fourth proportional to 779,770,407.20, 1,169,655,610.80 and 657,326,400.80 is: 985,989,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,770,407.20 : 1,169,655,610.80 = 657,326,400.80 : x
  2. Step 2: Convert to fraction form
    779,770,407.20/1,169,655,610.80 = 657,326,400.80/x
  3. Step 3: Cross multiply
    779,770,407.20x = 1,169,655,610.80 × 657,326,400.80
  4. Step 4: Simplify right side
    779,770,407.20x = 768,845,512,822,689,536
  5. Step 5: Solve for x
    x = 768,845,512,822,689,536/779,770,407.20
  6. Step 6: Final answer
    x = 985,989,601.20

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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.