Home / 1,561,686,542,432.20-2,155,009,155,544-876,441,925,399.28

Finding the Fourth Proportional to 1,561,686,542,432.20, 2,155,009,155,544 and 876,441,925,399.28

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Solution

The fourth proportional to 1,561,686,542,432.20, 2,155,009,155,544 and 876,441,925,399.28 is: 1,209,423,480,461.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,686,542,432.20 : 2,155,009,155,544 = 876,441,925,399.28 : x
  2. Step 2: Convert to fraction form
    1,561,686,542,432.20/2,155,009,155,544 = 876,441,925,399.28/x
  3. Step 3: Cross multiply
    1,561,686,542,432.20x = 2,155,009,155,544 × 876,441,925,399.28
  4. Step 4: Simplify right side
    1,561,686,542,432.20x = 1,888,740,373,538,059,841,437,696
  5. Step 5: Solve for x
    x = 1,888,740,373,538,059,841,437,696/1,561,686,542,432.20
  6. Step 6: Final answer
    x = 1,209,423,480,461.39

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.