Home / 289,658,765.20-434,992,032.60-153,609,869.20

Finding the Fourth Proportional to 289,658,765.20, 434,992,032.60 and 153,609,869.20

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Solution

The fourth proportional to 289,658,765.20, 434,992,032.60 and 153,609,869.20 is: 230,682,020.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,658,765.20 : 434,992,032.60 = 153,609,869.20 : x
  2. Step 2: Convert to fraction form
    289,658,765.20/434,992,032.60 = 153,609,869.20/x
  3. Step 3: Cross multiply
    289,658,765.20x = 434,992,032.60 × 153,609,869.20
  4. Step 4: Simplify right side
    289,658,765.20x = 66,819,069,230,728,136
  5. Step 5: Solve for x
    x = 66,819,069,230,728,136/289,658,765.20
  6. Step 6: Final answer
    x = 230,682,020.57

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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.