Home / 288,029,084.35-397,481,125.65-155,870,045.84

Finding the Fourth Proportional to 288,029,084.35, 397,481,125.65 and 155,870,045.84

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Solution

The fourth proportional to 288,029,084.35, 397,481,125.65 and 155,870,045.84 is: 215,101,198.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,029,084.35 : 397,481,125.65 = 155,870,045.84 : x
  2. Step 2: Convert to fraction form
    288,029,084.35/397,481,125.65 = 155,870,045.84/x
  3. Step 3: Cross multiply
    288,029,084.35x = 397,481,125.65 × 155,870,045.84
  4. Step 4: Simplify right side
    288,029,084.35x = 61,955,401,273,612,896
  5. Step 5: Solve for x
    x = 61,955,401,273,612,896/288,029,084.35
  6. Step 6: Final answer
    x = 215,101,198.60

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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.