Home / 158,238,692.57-218,366,505.50-87,674,045.40

Finding the Fourth Proportional to 158,238,692.57, 218,366,505.50 and 87,674,045.40

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Solution

The fourth proportional to 158,238,692.57, 218,366,505.50 and 87,674,045.40 is: 120,988,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,238,692.57 : 218,366,505.50 = 87,674,045.40 : x
  2. Step 2: Convert to fraction form
    158,238,692.57/218,366,505.50 = 87,674,045.40/x
  3. Step 3: Cross multiply
    158,238,692.57x = 218,366,505.50 × 87,674,045.40
  4. Step 4: Simplify right side
    158,238,692.57x = 19,145,074,916,607,980
  5. Step 5: Solve for x
    x = 19,145,074,916,607,980/158,238,692.57
  6. Step 6: Final answer
    x = 120,988,581.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.