Home / 839,808,515.70-1,259,712,773.55-580,475,805.30

Finding the Fourth Proportional to 839,808,515.70, 1,259,712,773.55 and 580,475,805.30

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Solution

The fourth proportional to 839,808,515.70, 1,259,712,773.55 and 580,475,805.30 is: 870,713,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,515.70 : 1,259,712,773.55 = 580,475,805.30 : x
  2. Step 2: Convert to fraction form
    839,808,515.70/1,259,712,773.55 = 580,475,805.30/x
  3. Step 3: Cross multiply
    839,808,515.70x = 1,259,712,773.55 × 580,475,805.30
  4. Step 4: Simplify right side
    839,808,515.70x = 731,232,786,673,132,672
  5. Step 5: Solve for x
    x = 731,232,786,673,132,672/839,808,515.70
  6. Step 6: Final answer
    x = 870,713,707.95

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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.