Home / 13,166,278.40-19,719,926.40-12,871,366.40

Finding the Fourth Proportional to 13,166,278.40, 19,719,926.40 and 12,871,366.40

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Solution

The fourth proportional to 13,166,278.40, 19,719,926.40 and 12,871,366.40 is: 19,278,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166,278.40 : 19,719,926.40 = 12,871,366.40 : x
  2. Step 2: Convert to fraction form
    13,166,278.40/19,719,926.40 = 12,871,366.40/x
  3. Step 3: Cross multiply
    13,166,278.40x = 19,719,926.40 × 12,871,366.40
  4. Step 4: Simplify right side
    13,166,278.40x = 253,822,398,075,432.94
  5. Step 5: Solve for x
    x = 253,822,398,075,432.94/13,166,278.40
  6. Step 6: Final answer
    x = 19,278,218.97

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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.