Home / 942,071,992.87-1,413,318,748.20-287,074,281.91

Finding the Fourth Proportional to 942,071,992.87, 1,413,318,748.20 and 287,074,281.91

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Solution

The fourth proportional to 942,071,992.87, 1,413,318,748.20 and 287,074,281.91 is: 430,675,646.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,071,992.87 : 1,413,318,748.20 = 287,074,281.91 : x
  2. Step 2: Convert to fraction form
    942,071,992.87/1,413,318,748.20 = 287,074,281.91/x
  3. Step 3: Cross multiply
    942,071,992.87x = 1,413,318,748.20 × 287,074,281.91
  4. Step 4: Simplify right side
    942,071,992.87x = 405,727,464,744,486,464
  5. Step 5: Solve for x
    x = 405,727,464,744,486,464/942,071,992.87
  6. Step 6: Final answer
    x = 430,675,646.68

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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.