Home / 912,972,165.39-1,259,767,176.21-511,065,025.29

Finding the Fourth Proportional to 912,972,165.39, 1,259,767,176.21 and 511,065,025.29

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Solution

The fourth proportional to 912,972,165.39, 1,259,767,176.21 and 511,065,025.29 is: 705,194,493.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,972,165.39 : 1,259,767,176.21 = 511,065,025.29 : x
  2. Step 2: Convert to fraction form
    912,972,165.39/1,259,767,176.21 = 511,065,025.29/x
  3. Step 3: Cross multiply
    912,972,165.39x = 1,259,767,176.21 × 511,065,025.29
  4. Step 4: Simplify right side
    912,972,165.39x = 643,822,943,769,275,520
  5. Step 5: Solve for x
    x = 643,822,943,769,275,520/912,972,165.39
  6. Step 6: Final answer
    x = 705,194,493.52

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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.