Home / 21,103,651.40-31,608,237.90-12,600,595.40

Finding the Fourth Proportional to 21,103,651.40, 31,608,237.90 and 12,600,595.40

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Solution

The fourth proportional to 21,103,651.40, 31,608,237.90 and 12,600,595.40 is: 18,872,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103,651.40 : 31,608,237.90 = 12,600,595.40 : x
  2. Step 2: Convert to fraction form
    21,103,651.40/31,608,237.90 = 12,600,595.40/x
  3. Step 3: Cross multiply
    21,103,651.40x = 31,608,237.90 × 12,600,595.40
  4. Step 4: Simplify right side
    21,103,651.40x = 398,282,617,084,845.62
  5. Step 5: Solve for x
    x = 398,282,617,084,845.62/21,103,651.40
  6. Step 6: Final answer
    x = 18,872,687.46

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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.