Home / 885,409,081.20-1,328,680,492.20-516,943,321.20

Finding the Fourth Proportional to 885,409,081.20, 1,328,680,492.20 and 516,943,321.20

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Solution

The fourth proportional to 885,409,081.20, 1,328,680,492.20 and 516,943,321.20 is: 775,745,947.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,409,081.20 : 1,328,680,492.20 = 516,943,321.20 : x
  2. Step 2: Convert to fraction form
    885,409,081.20/1,328,680,492.20 = 516,943,321.20/x
  3. Step 3: Cross multiply
    885,409,081.20x = 1,328,680,492.20 × 516,943,321.20
  4. Step 4: Simplify right side
    885,409,081.20x = 686,852,506,451,518,720
  5. Step 5: Solve for x
    x = 686,852,506,451,518,720/885,409,081.20
  6. Step 6: Final answer
    x = 775,745,947.31

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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.