Home / 912,255,170.50-1,259,951,397.69-618,389,555.14

Finding the Fourth Proportional to 912,255,170.50, 1,259,951,397.69 and 618,389,555.14

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Solution

The fourth proportional to 912,255,170.50, 1,259,951,397.69 and 618,389,555.14 is: 854,082,069.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,255,170.50 : 1,259,951,397.69 = 618,389,555.14 : x
  2. Step 2: Convert to fraction form
    912,255,170.50/1,259,951,397.69 = 618,389,555.14/x
  3. Step 3: Cross multiply
    912,255,170.50x = 1,259,951,397.69 × 618,389,555.14
  4. Step 4: Simplify right side
    912,255,170.50x = 779,140,784,315,540,352
  5. Step 5: Solve for x
    x = 779,140,784,315,540,352/912,255,170.50
  6. Step 6: Final answer
    x = 854,082,069.92

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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.