Home / 858,620,477.70-1,287,930,716.55-586,522,685.70

Finding the Fourth Proportional to 858,620,477.70, 1,287,930,716.55 and 586,522,685.70

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Solution

The fourth proportional to 858,620,477.70, 1,287,930,716.55 and 586,522,685.70 is: 879,784,028.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,620,477.70 : 1,287,930,716.55 = 586,522,685.70 : x
  2. Step 2: Convert to fraction form
    858,620,477.70/1,287,930,716.55 = 586,522,685.70/x
  3. Step 3: Cross multiply
    858,620,477.70x = 1,287,930,716.55 × 586,522,685.70
  4. Step 4: Simplify right side
    858,620,477.70x = 755,400,582,866,431,488
  5. Step 5: Solve for x
    x = 755,400,582,866,431,488/858,620,477.70
  6. Step 6: Final answer
    x = 879,784,028.55

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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.