Home / 30,511,385.40-45,767,078.10-16,128,895.80

Finding the Fourth Proportional to 30,511,385.40, 45,767,078.10 and 16,128,895.80

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Solution

The fourth proportional to 30,511,385.40, 45,767,078.10 and 16,128,895.80 is: 24,193,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,511,385.40 : 45,767,078.10 = 16,128,895.80 : x
  2. Step 2: Convert to fraction form
    30,511,385.40/45,767,078.10 = 16,128,895.80/x
  3. Step 3: Cross multiply
    30,511,385.40x = 45,767,078.10 × 16,128,895.80
  4. Step 4: Simplify right side
    30,511,385.40x = 738,172,433,745,362
  5. Step 5: Solve for x
    x = 738,172,433,745,362/30,511,385.40
  6. Step 6: Final answer
    x = 24,193,343.70

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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.