Home / 288,281,453.40-397,823,488.74-156,121,376.04

Finding the Fourth Proportional to 288,281,453.40, 397,823,488.74 and 156,121,376.04

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Solution

The fourth proportional to 288,281,453.40, 397,823,488.74 and 156,121,376.04 is: 215,444,836.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,281,453.40 : 397,823,488.74 = 156,121,376.04 : x
  2. Step 2: Convert to fraction form
    288,281,453.40/397,823,488.74 = 156,121,376.04/x
  3. Step 3: Cross multiply
    288,281,453.40x = 397,823,488.74 × 156,121,376.04
  4. Step 4: Simplify right side
    288,281,453.40x = 62,108,750,483,122,240
  5. Step 5: Solve for x
    x = 62,108,750,483,122,240/288,281,453.40
  6. Step 6: Final answer
    x = 215,444,836.12

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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.