Home / 912,541,115.76-1,259,307,075.42-494,853,290.34

Finding the Fourth Proportional to 912,541,115.76, 1,259,307,075.42 and 494,853,290.34

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Solution

The fourth proportional to 912,541,115.76, 1,259,307,075.42 and 494,853,290.34 is: 682,897,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,541,115.76 : 1,259,307,075.42 = 494,853,290.34 : x
  2. Step 2: Convert to fraction form
    912,541,115.76/1,259,307,075.42 = 494,853,290.34/x
  3. Step 3: Cross multiply
    912,541,115.76x = 1,259,307,075.42 × 494,853,290.34
  4. Step 4: Simplify right side
    912,541,115.76x = 623,172,249,820,029,568
  5. Step 5: Solve for x
    x = 623,172,249,820,029,568/912,541,115.76
  6. Step 6: Final answer
    x = 682,897,722.70

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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.