Home / 12,603,731.60-18,872,419.80-9,219,616.40

Finding the Fourth Proportional to 12,603,731.60, 18,872,419.80 and 9,219,616.40

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Solution

The fourth proportional to 12,603,731.60, 18,872,419.80 and 9,219,616.40 is: 13,805,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603,731.60 : 18,872,419.80 = 9,219,616.40 : x
  2. Step 2: Convert to fraction form
    12,603,731.60/18,872,419.80 = 9,219,616.40/x
  3. Step 3: Cross multiply
    12,603,731.60x = 18,872,419.80 × 9,219,616.40
  4. Step 4: Simplify right side
    12,603,731.60x = 173,996,471,095,764.72
  5. Step 5: Solve for x
    x = 173,996,471,095,764.72/12,603,731.60
  6. Step 6: Final answer
    x = 13,805,155.22

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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.