Home / 19,681,111.60-29,521,667.40-12,083,441.20

Finding the Fourth Proportional to 19,681,111.60, 29,521,667.40 and 12,083,441.20

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Solution

The fourth proportional to 19,681,111.60, 29,521,667.40 and 12,083,441.20 is: 18,125,161.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,681,111.60 : 29,521,667.40 = 12,083,441.20 : x
  2. Step 2: Convert to fraction form
    19,681,111.60/29,521,667.40 = 12,083,441.20/x
  3. Step 3: Cross multiply
    19,681,111.60x = 29,521,667.40 × 12,083,441.20
  4. Step 4: Simplify right side
    19,681,111.60x = 356,723,332,153,856.81
  5. Step 5: Solve for x
    x = 356,723,332,153,856.81/19,681,111.60
  6. Step 6: Final answer
    x = 18,125,161.80

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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.