Home / 89,848,985.40-134,773,478.10-86,321,791.80

Finding the Fourth Proportional to 89,848,985.40, 134,773,478.10 and 86,321,791.80

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Solution

The fourth proportional to 89,848,985.40, 134,773,478.10 and 86,321,791.80 is: 129,482,687.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,848,985.40 : 134,773,478.10 = 86,321,791.80 : x
  2. Step 2: Convert to fraction form
    89,848,985.40/134,773,478.10 = 86,321,791.80/x
  3. Step 3: Cross multiply
    89,848,985.40x = 134,773,478.10 × 86,321,791.80
  4. Step 4: Simplify right side
    89,848,985.40x = 11,633,888,116,710,058
  5. Step 5: Solve for x
    x = 11,633,888,116,710,058/89,848,985.40
  6. Step 6: Final answer
    x = 129,482,687.70

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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.