Home / 143,151,504,641.28-197,549,294,083.20-79,785,370,840.32

Finding the Fourth Proportional to 143,151,504,641.28, 197,549,294,083.20 and 79,785,370,840.32

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Solution

The fourth proportional to 143,151,504,641.28, 197,549,294,083.20 and 79,785,370,840.32 is: 110,103,933,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,151,504,641.28 : 197,549,294,083.20 = 79,785,370,840.32 : x
  2. Step 2: Convert to fraction form
    143,151,504,641.28/197,549,294,083.20 = 79,785,370,840.32/x
  3. Step 3: Cross multiply
    143,151,504,641.28x = 197,549,294,083.20 × 79,785,370,840.32
  4. Step 4: Simplify right side
    143,151,504,641.28x = 15,761,543,687,671,547,691,008
  5. Step 5: Solve for x
    x = 15,761,543,687,671,547,691,008/143,151,504,641.28
  6. Step 6: Final answer
    x = 110,103,933,082.42

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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.