Home / 858,620,565.45-1,287,930,848.18-586,522,773.45

Finding the Fourth Proportional to 858,620,565.45, 1,287,930,848.18 and 586,522,773.45

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Solution

The fourth proportional to 858,620,565.45, 1,287,930,848.18 and 586,522,773.45 is: 879,784,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,620,565.45 : 1,287,930,848.18 = 586,522,773.45 : x
  2. Step 2: Convert to fraction form
    858,620,565.45/1,287,930,848.18 = 586,522,773.45/x
  3. Step 3: Cross multiply
    858,620,565.45x = 1,287,930,848.18 × 586,522,773.45
  4. Step 4: Simplify right side
    858,620,565.45x = 755,400,773,083,411,968
  5. Step 5: Solve for x
    x = 755,400,773,083,411,968/858,620,565.45
  6. Step 6: Final answer
    x = 879,784,160.18

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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.