Home / 1,238,216,684.11-1,858,142,241.32-656,359,537.20

Finding the Fourth Proportional to 1,238,216,684.11, 1,858,142,241.32 and 656,359,537.20

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Solution

The fourth proportional to 1,238,216,684.11, 1,858,142,241.32 and 656,359,537.20 is: 984,972,498.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,216,684.11 : 1,858,142,241.32 = 656,359,537.20 : x
  2. Step 2: Convert to fraction form
    1,238,216,684.11/1,858,142,241.32 = 656,359,537.20/x
  3. Step 3: Cross multiply
    1,238,216,684.11x = 1,858,142,241.32 × 656,359,537.20
  4. Step 4: Simplify right side
    1,238,216,684.11x = 1,219,609,381,561,284,352
  5. Step 5: Solve for x
    x = 1,219,609,381,561,284,352/1,238,216,684.11
  6. Step 6: Final answer
    x = 984,972,498.93

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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.