Home / 21,019,332.66-29,006,017.75-12,323,295.78

Finding the Fourth Proportional to 21,019,332.66, 29,006,017.75 and 12,323,295.78

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Solution

The fourth proportional to 21,019,332.66, 29,006,017.75 and 12,323,295.78 is: 17,005,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,332.66 : 29,006,017.75 = 12,323,295.78 : x
  2. Step 2: Convert to fraction form
    21,019,332.66/29,006,017.75 = 12,323,295.78/x
  3. Step 3: Cross multiply
    21,019,332.66x = 29,006,017.75 × 12,323,295.78
  4. Step 4: Simplify right side
    21,019,332.66x = 357,449,736,133,180.06
  5. Step 5: Solve for x
    x = 357,449,736,133,180.06/21,019,332.66
  6. Step 6: Final answer
    x = 17,005,760.45

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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.