Home / 75,328,048.40-112,992,072.60-70,793,085.20

Finding the Fourth Proportional to 75,328,048.40, 112,992,072.60 and 70,793,085.20

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Solution

The fourth proportional to 75,328,048.40, 112,992,072.60 and 70,793,085.20 is: 106,189,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,328,048.40 : 112,992,072.60 = 70,793,085.20 : x
  2. Step 2: Convert to fraction form
    75,328,048.40/112,992,072.60 = 70,793,085.20/x
  3. Step 3: Cross multiply
    75,328,048.40x = 112,992,072.60 × 70,793,085.20
  4. Step 4: Simplify right side
    75,328,048.40x = 7,999,057,422,496,385
  5. Step 5: Solve for x
    x = 7,999,057,422,496,385/75,328,048.40
  6. Step 6: Final answer
    x = 106,189,627.80

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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.