Home / 30,509,863.79-42,103,921.30-16,571,353.57

Finding the Fourth Proportional to 30,509,863.79, 42,103,921.30 and 16,571,353.57

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Solution

The fourth proportional to 30,509,863.79, 42,103,921.30 and 16,571,353.57 is: 22,868,635.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,509,863.79 : 42,103,921.30 = 16,571,353.57 : x
  2. Step 2: Convert to fraction form
    30,509,863.79/42,103,921.30 = 16,571,353.57/x
  3. Step 3: Cross multiply
    30,509,863.79x = 42,103,921.30 × 16,571,353.57
  4. Step 4: Simplify right side
    30,509,863.79x = 697,718,966,545,754
  5. Step 5: Solve for x
    x = 697,718,966,545,754/30,509,863.79
  6. Step 6: Final answer
    x = 22,868,635.91

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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.