Home / 91,376,609.80-137,064,914.70-87,345,531.40

Finding the Fourth Proportional to 91,376,609.80, 137,064,914.70 and 87,345,531.40

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Solution

The fourth proportional to 91,376,609.80, 137,064,914.70 and 87,345,531.40 is: 131,018,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,376,609.80 : 137,064,914.70 = 87,345,531.40 : x
  2. Step 2: Convert to fraction form
    91,376,609.80/137,064,914.70 = 87,345,531.40/x
  3. Step 3: Cross multiply
    91,376,609.80x = 137,064,914.70 × 87,345,531.40
  4. Step 4: Simplify right side
    91,376,609.80x = 11,972,007,810,767,172
  5. Step 5: Solve for x
    x = 11,972,007,810,767,172/91,376,609.80
  6. Step 6: Final answer
    x = 131,018,297.10

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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.