Home / 280,033,420.20-419,042,360.70-189,334,156.20

Finding the Fourth Proportional to 280,033,420.20, 419,042,360.70 and 189,334,156.20

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Solution

The fourth proportional to 280,033,420.20, 419,042,360.70 and 189,334,156.20 is: 283,319,868.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,033,420.20 : 419,042,360.70 = 189,334,156.20 : x
  2. Step 2: Convert to fraction form
    280,033,420.20/419,042,360.70 = 189,334,156.20/x
  3. Step 3: Cross multiply
    280,033,420.20x = 419,042,360.70 × 189,334,156.20
  4. Step 4: Simplify right side
    280,033,420.20x = 79,339,031,775,190,528
  5. Step 5: Solve for x
    x = 79,339,031,775,190,528/280,033,420.20
  6. Step 6: Final answer
    x = 283,319,868.46

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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.