Home / 2,138,914,014.51-3,206,106,614.69-719,459,870.75

Finding the Fourth Proportional to 2,138,914,014.51, 3,206,106,614.69 and 719,459,870.75

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Solution

The fourth proportional to 2,138,914,014.51, 3,206,106,614.69 and 719,459,870.75 is: 1,078,428,134.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,914,014.51 : 3,206,106,614.69 = 719,459,870.75 : x
  2. Step 2: Convert to fraction form
    2,138,914,014.51/3,206,106,614.69 = 719,459,870.75/x
  3. Step 3: Cross multiply
    2,138,914,014.51x = 3,206,106,614.69 × 719,459,870.75
  4. Step 4: Simplify right side
    2,138,914,014.51x = 2,306,665,050,615,587,328
  5. Step 5: Solve for x
    x = 2,306,665,050,615,587,328/2,138,914,014.51
  6. Step 6: Final answer
    x = 1,078,428,134.54

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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.