Home / 1,259,712,086.20-1,889,568,129.30-647,492,054.20

Finding the Fourth Proportional to 1,259,712,086.20, 1,889,568,129.30 and 647,492,054.20

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Solution

The fourth proportional to 1,259,712,086.20, 1,889,568,129.30 and 647,492,054.20 is: 971,238,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,712,086.20 : 1,889,568,129.30 = 647,492,054.20 : x
  2. Step 2: Convert to fraction form
    1,259,712,086.20/1,889,568,129.30 = 647,492,054.20/x
  3. Step 3: Cross multiply
    1,259,712,086.20x = 1,889,568,129.30 × 647,492,054.20
  4. Step 4: Simplify right side
    1,259,712,086.20x = 1,223,480,349,591,308,288
  5. Step 5: Solve for x
    x = 1,223,480,349,591,308,288/1,259,712,086.20
  6. Step 6: Final answer
    x = 971,238,081.30

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Double scale
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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.