Home / 55,275,187.60-82,912,781.40-42,520,603.60

Finding the Fourth Proportional to 55,275,187.60, 82,912,781.40 and 42,520,603.60

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Solution

The fourth proportional to 55,275,187.60, 82,912,781.40 and 42,520,603.60 is: 63,780,905.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,275,187.60 : 82,912,781.40 = 42,520,603.60 : x
  2. Step 2: Convert to fraction form
    55,275,187.60/82,912,781.40 = 42,520,603.60/x
  3. Step 3: Cross multiply
    55,275,187.60x = 82,912,781.40 × 42,520,603.60
  4. Step 4: Simplify right side
    55,275,187.60x = 3,525,501,511,282,853.50
  5. Step 5: Solve for x
    x = 3,525,501,511,282,853.50/55,275,187.60
  6. Step 6: Final answer
    x = 63,780,905.40

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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.