Home / 85,214,466.80-127,737,719.40-42,048,335.60

Finding the Fourth Proportional to 85,214,466.80, 127,737,719.40 and 42,048,335.60

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Solution

The fourth proportional to 85,214,466.80, 127,737,719.40 and 42,048,335.60 is: 63,031,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,214,466.80 : 127,737,719.40 = 42,048,335.60 : x
  2. Step 2: Convert to fraction form
    85,214,466.80/127,737,719.40 = 42,048,335.60/x
  3. Step 3: Cross multiply
    85,214,466.80x = 127,737,719.40 × 42,048,335.60
  4. Step 4: Simplify right side
    85,214,466.80x = 5,371,158,494,109,831
  5. Step 5: Solve for x
    x = 5,371,158,494,109,831/85,214,466.80
  6. Step 6: Final answer
    x = 63,031,063.81

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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.