Home / 7,191,145,196.12-9,923,380,073.05-3,975,869,298.61

Finding the Fourth Proportional to 7,191,145,196.12, 9,923,380,073.05 and 3,975,869,298.61

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Solution

The fourth proportional to 7,191,145,196.12, 9,923,380,073.05 and 3,975,869,298.61 is: 5,486,478,313.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191,145,196.12 : 9,923,380,073.05 = 3,975,869,298.61 : x
  2. Step 2: Convert to fraction form
    7,191,145,196.12/9,923,380,073.05 = 3,975,869,298.61/x
  3. Step 3: Cross multiply
    7,191,145,196.12x = 9,923,380,073.05 × 3,975,869,298.61
  4. Step 4: Simplify right side
    7,191,145,196.12x = 39,454,062,170,830,716,928
  5. Step 5: Solve for x
    x = 39,454,062,170,830,716,928/7,191,145,196.12
  6. Step 6: Final answer
    x = 5,486,478,313.93

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1.5x scale

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.