Home / 85,537,209.40-128,156,514.90-73,593,273.40

Finding the Fourth Proportional to 85,537,209.40, 128,156,514.90 and 73,593,273.40

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Solution

The fourth proportional to 85,537,209.40, 128,156,514.90 and 73,593,273.40 is: 110,261,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,537,209.40 : 128,156,514.90 = 73,593,273.40 : x
  2. Step 2: Convert to fraction form
    85,537,209.40/128,156,514.90 = 73,593,273.40/x
  3. Step 3: Cross multiply
    85,537,209.40x = 128,156,514.90 × 73,593,273.40
  4. Step 4: Simplify right side
    85,537,209.40x = 9,431,457,439,026,874
  5. Step 5: Solve for x
    x = 9,431,457,439,026,874/85,537,209.40
  6. Step 6: Final answer
    x = 110,261,458.20

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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.