Home / 12,943,699.30-19,415,548.95-12,145,881.70

Finding the Fourth Proportional to 12,943,699.30, 19,415,548.95 and 12,145,881.70

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Solution

The fourth proportional to 12,943,699.30, 19,415,548.95 and 12,145,881.70 is: 18,218,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943,699.30 : 19,415,548.95 = 12,145,881.70 : x
  2. Step 2: Convert to fraction form
    12,943,699.30/19,415,548.95 = 12,145,881.70/x
  3. Step 3: Cross multiply
    12,943,699.30x = 19,415,548.95 × 12,145,881.70
  4. Step 4: Simplify right side
    12,943,699.30x = 235,818,960,687,259.19
  5. Step 5: Solve for x
    x = 235,818,960,687,259.19/12,943,699.30
  6. Step 6: Final answer
    x = 18,218,822.55

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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.