Home / 858,620,571.20-1,287,930,856.80-586,522,779.20

Finding the Fourth Proportional to 858,620,571.20, 1,287,930,856.80 and 586,522,779.20

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Solution

The fourth proportional to 858,620,571.20, 1,287,930,856.80 and 586,522,779.20 is: 879,784,168.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,620,571.20 : 1,287,930,856.80 = 586,522,779.20 : x
  2. Step 2: Convert to fraction form
    858,620,571.20/1,287,930,856.80 = 586,522,779.20/x
  3. Step 3: Cross multiply
    858,620,571.20x = 1,287,930,856.80 × 586,522,779.20
  4. Step 4: Simplify right side
    858,620,571.20x = 755,400,785,547,773,312
  5. Step 5: Solve for x
    x = 755,400,785,547,773,312/858,620,571.20
  6. Step 6: Final answer
    x = 879,784,168.80

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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.