Home / 1,278,117,430.20-1,917,176,145.30-501,363,264.60

Finding the Fourth Proportional to 1,278,117,430.20, 1,917,176,145.30 and 501,363,264.60

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Solution

The fourth proportional to 1,278,117,430.20, 1,917,176,145.30 and 501,363,264.60 is: 752,044,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,117,430.20 : 1,917,176,145.30 = 501,363,264.60 : x
  2. Step 2: Convert to fraction form
    1,278,117,430.20/1,917,176,145.30 = 501,363,264.60/x
  3. Step 3: Cross multiply
    1,278,117,430.20x = 1,917,176,145.30 × 501,363,264.60
  4. Step 4: Simplify right side
    1,278,117,430.20x = 961,201,691,020,851,968
  5. Step 5: Solve for x
    x = 961,201,691,020,851,968/1,278,117,430.20
  6. Step 6: Final answer
    x = 752,044,896.90

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Double scale
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Similar ratio
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1.5x scale

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.