Home / 313,145,971,979.10-469,526,723,965.53-121,694,466,154.75

Finding the Fourth Proportional to 313,145,971,979.10, 469,526,723,965.53 and 121,694,466,154.75

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Solution

The fourth proportional to 313,145,971,979.10, 469,526,723,965.53 and 121,694,466,154.75 is: 182,466,993,451.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,145,971,979.10 : 469,526,723,965.53 = 121,694,466,154.75 : x
  2. Step 2: Convert to fraction form
    313,145,971,979.10/469,526,723,965.53 = 121,694,466,154.75/x
  3. Step 3: Cross multiply
    313,145,971,979.10x = 469,526,723,965.53 × 121,694,466,154.75
  4. Step 4: Simplify right side
    313,145,971,979.10x = 57,138,804,018,373,837,455,360
  5. Step 5: Solve for x
    x = 57,138,804,018,373,837,455,360/313,145,971,979.10
  6. Step 6: Final answer
    x = 182,466,993,451.18

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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.