Home / 91,875,141,146.80-137,812,711,720.20-77,181,860,378.80

Finding the Fourth Proportional to 91,875,141,146.80, 137,812,711,720.20 and 77,181,860,378.80

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Solution

The fourth proportional to 91,875,141,146.80, 137,812,711,720.20 and 77,181,860,378.80 is: 115,772,790,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,875,141,146.80 : 137,812,711,720.20 = 77,181,860,378.80 : x
  2. Step 2: Convert to fraction form
    91,875,141,146.80/137,812,711,720.20 = 77,181,860,378.80/x
  3. Step 3: Cross multiply
    91,875,141,146.80x = 137,812,711,720.20 × 77,181,860,378.80
  4. Step 4: Simplify right side
    91,875,141,146.80x = 10,636,641,474,412,292,341,760
  5. Step 5: Solve for x
    x = 10,636,641,474,412,292,341,760/91,875,141,146.80
  6. Step 6: Final answer
    x = 115,772,790,568.20

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Double scale
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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.