Home / 80,590,667,385.80-120,886,001,078.70-38,645,942,443.40

Finding the Fourth Proportional to 80,590,667,385.80, 120,886,001,078.70 and 38,645,942,443.40

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Solution

The fourth proportional to 80,590,667,385.80, 120,886,001,078.70 and 38,645,942,443.40 is: 57,968,913,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,590,667,385.80 : 120,886,001,078.70 = 38,645,942,443.40 : x
  2. Step 2: Convert to fraction form
    80,590,667,385.80/120,886,001,078.70 = 38,645,942,443.40/x
  3. Step 3: Cross multiply
    80,590,667,385.80x = 120,886,001,078.70 × 38,645,942,443.40
  4. Step 4: Simplify right side
    80,590,667,385.80x = 4,671,753,439,900,230,746,112
  5. Step 5: Solve for x
    x = 4,671,753,439,900,230,746,112/80,590,667,385.80
  6. Step 6: Final answer
    x = 57,968,913,665.10

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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.