Home / 858,620,542.20-1,287,930,813.30-586,522,750.20

Finding the Fourth Proportional to 858,620,542.20, 1,287,930,813.30 and 586,522,750.20

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Solution

The fourth proportional to 858,620,542.20, 1,287,930,813.30 and 586,522,750.20 is: 879,784,125.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,620,542.20 : 1,287,930,813.30 = 586,522,750.20 : x
  2. Step 2: Convert to fraction form
    858,620,542.20/1,287,930,813.30 = 586,522,750.20/x
  3. Step 3: Cross multiply
    858,620,542.20x = 1,287,930,813.30 × 586,522,750.20
  4. Step 4: Simplify right side
    858,620,542.20x = 755,400,722,684,038,784
  5. Step 5: Solve for x
    x = 755,400,722,684,038,784/858,620,542.20
  6. Step 6: Final answer
    x = 879,784,125.30

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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.