Home / 31,938,087.38-48,007,131.64-21,078,063.20

Finding the Fourth Proportional to 31,938,087.38, 48,007,131.64 and 21,078,063.20

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Solution

The fourth proportional to 31,938,087.38, 48,007,131.64 and 21,078,063.20 is: 31,683,091.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938,087.38 : 48,007,131.64 = 21,078,063.20 : x
  2. Step 2: Convert to fraction form
    31,938,087.38/48,007,131.64 = 21,078,063.20/x
  3. Step 3: Cross multiply
    31,938,087.38x = 48,007,131.64 × 21,078,063.20
  4. Step 4: Simplify right side
    31,938,087.38x = 1,011,897,354,825,962.38
  5. Step 5: Solve for x
    x = 1,011,897,354,825,962.38/31,938,087.38
  6. Step 6: Final answer
    x = 31,683,091.82

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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.