Home / 1,040,127,374.76-1,560,727,465.02-487,485,947.71

Finding the Fourth Proportional to 1,040,127,374.76, 1,560,727,465.02 and 487,485,947.71

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Solution

The fourth proportional to 1,040,127,374.76, 1,560,727,465.02 and 487,485,947.71 is: 731,480,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,127,374.76 : 1,560,727,465.02 = 487,485,947.71 : x
  2. Step 2: Convert to fraction form
    1,040,127,374.76/1,560,727,465.02 = 487,485,947.71/x
  3. Step 3: Cross multiply
    1,040,127,374.76x = 1,560,727,465.02 × 487,485,947.71
  4. Step 4: Simplify right side
    1,040,127,374.76x = 760,832,707,402,300,544
  5. Step 5: Solve for x
    x = 760,832,707,402,300,544/1,040,127,374.76
  6. Step 6: Final answer
    x = 731,480,322.38

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Double scale
Find fourth proportional to 1,040,127,375.76, 1,560,727,466.52 and 487,485,948.71
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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.