Home / 19,470,899-29,146,560.78-12,248,616.80

Finding the Fourth Proportional to 19,470,899, 29,146,560.78 and 12,248,616.80

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Solution

The fourth proportional to 19,470,899, 29,146,560.78 and 12,248,616.80 is: 18,335,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,470,899 : 29,146,560.78 = 12,248,616.80 : x
  2. Step 2: Convert to fraction form
    19,470,899/29,146,560.78 = 12,248,616.80/x
  3. Step 3: Cross multiply
    19,470,899x = 29,146,560.78 × 12,248,616.80
  4. Step 4: Simplify right side
    19,470,899x = 357,005,054,032,129.12
  5. Step 5: Solve for x
    x = 357,005,054,032,129.12/19,470,899
  6. Step 6: Final answer
    x = 18,335,314.36

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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.