Home / 289,658,571.20-434,991,741.60-153,609,675.20

Finding the Fourth Proportional to 289,658,571.20, 434,991,741.60 and 153,609,675.20

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Solution

The fourth proportional to 289,658,571.20, 434,991,741.60 and 153,609,675.20 is: 230,681,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,658,571.20 : 434,991,741.60 = 153,609,675.20 : x
  2. Step 2: Convert to fraction form
    289,658,571.20/434,991,741.60 = 153,609,675.20/x
  3. Step 3: Cross multiply
    289,658,571.20x = 434,991,741.60 × 153,609,675.20
  4. Step 4: Simplify right side
    289,658,571.20x = 66,818,940,141,858,328
  5. Step 5: Solve for x
    x = 66,818,940,141,858,328/289,658,571.20
  6. Step 6: Final answer
    x = 230,681,729.41

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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.