Home / 82,945,128.60-124,417,692.90-73,091,381.40

Finding the Fourth Proportional to 82,945,128.60, 124,417,692.90 and 73,091,381.40

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Solution

The fourth proportional to 82,945,128.60, 124,417,692.90 and 73,091,381.40 is: 109,637,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,945,128.60 : 124,417,692.90 = 73,091,381.40 : x
  2. Step 2: Convert to fraction form
    82,945,128.60/124,417,692.90 = 73,091,381.40/x
  3. Step 3: Cross multiply
    82,945,128.60x = 124,417,692.90 × 73,091,381.40
  4. Step 4: Simplify right side
    82,945,128.60x = 9,093,861,044,661,974
  5. Step 5: Solve for x
    x = 9,093,861,044,661,974/82,945,128.60
  6. Step 6: Final answer
    x = 109,637,072.10

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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.