Home / 19,318,655.71-28,930,153.89-14,188,921.48

Finding the Fourth Proportional to 19,318,655.71, 28,930,153.89 and 14,188,921.48

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Solution

The fourth proportional to 19,318,655.71, 28,930,153.89 and 14,188,921.48 is: 21,248,252.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318,655.71 : 28,930,153.89 = 14,188,921.48 : x
  2. Step 2: Convert to fraction form
    19,318,655.71/28,930,153.89 = 14,188,921.48/x
  3. Step 3: Cross multiply
    19,318,655.71x = 28,930,153.89 × 14,188,921.48
  4. Step 4: Simplify right side
    19,318,655.71x = 410,487,681,949,526.56
  5. Step 5: Solve for x
    x = 410,487,681,949,526.56/19,318,655.71
  6. Step 6: Final answer
    x = 21,248,252.89

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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.