Home / 21,780,901.80-32,671,352.70-20,718,019.80

Finding the Fourth Proportional to 21,780,901.80, 32,671,352.70 and 20,718,019.80

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Solution

The fourth proportional to 21,780,901.80, 32,671,352.70 and 20,718,019.80 is: 31,077,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780,901.80 : 32,671,352.70 = 20,718,019.80 : x
  2. Step 2: Convert to fraction form
    21,780,901.80/32,671,352.70 = 20,718,019.80/x
  3. Step 3: Cross multiply
    21,780,901.80x = 32,671,352.70 × 20,718,019.80
  4. Step 4: Simplify right side
    21,780,901.80x = 676,885,732,131,383.50
  5. Step 5: Solve for x
    x = 676,885,732,131,383.50/21,780,901.80
  6. Step 6: Final answer
    x = 31,077,029.70

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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.