Home / 212,057,363.70-318,086,045.55-157,637,805.30

Finding the Fourth Proportional to 212,057,363.70, 318,086,045.55 and 157,637,805.30

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Solution

The fourth proportional to 212,057,363.70, 318,086,045.55 and 157,637,805.30 is: 236,456,707.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,057,363.70 : 318,086,045.55 = 157,637,805.30 : x
  2. Step 2: Convert to fraction form
    212,057,363.70/318,086,045.55 = 157,637,805.30/x
  3. Step 3: Cross multiply
    212,057,363.70x = 318,086,045.55 × 157,637,805.30
  4. Step 4: Simplify right side
    212,057,363.70x = 50,142,386,117,057,840
  5. Step 5: Solve for x
    x = 50,142,386,117,057,840/212,057,363.70
  6. Step 6: Final answer
    x = 236,456,707.95

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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.