Home / 21,197,117.32-29,258,365.35-12,378,947.25

Finding the Fourth Proportional to 21,197,117.32, 29,258,365.35 and 12,378,947.25

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Solution

The fourth proportional to 21,197,117.32, 29,258,365.35 and 12,378,947.25 is: 17,086,651.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197,117.32 : 29,258,365.35 = 12,378,947.25 : x
  2. Step 2: Convert to fraction form
    21,197,117.32/29,258,365.35 = 12,378,947.25/x
  3. Step 3: Cross multiply
    21,197,117.32x = 29,258,365.35 × 12,378,947.25
  4. Step 4: Simplify right side
    21,197,117.32x = 362,187,761,288,877.81
  5. Step 5: Solve for x
    x = 362,187,761,288,877.81/21,197,117.32
  6. Step 6: Final answer
    x = 17,086,651.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.