Home / 289,738,363.20-435,111,429.60-153,689,467.20

Finding the Fourth Proportional to 289,738,363.20, 435,111,429.60 and 153,689,467.20

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Solution

The fourth proportional to 289,738,363.20, 435,111,429.60 and 153,689,467.20 is: 230,801,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,738,363.20 : 435,111,429.60 = 153,689,467.20 : x
  2. Step 2: Convert to fraction form
    289,738,363.20/435,111,429.60 = 153,689,467.20/x
  3. Step 3: Cross multiply
    289,738,363.20x = 435,111,429.60 × 153,689,467.20
  4. Step 4: Simplify right side
    289,738,363.20x = 66,872,043,787,854,304
  5. Step 5: Solve for x
    x = 66,872,043,787,854,304/289,738,363.20
  6. Step 6: Final answer
    x = 230,801,482.58

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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.