Home / 213,092,219.80-319,638,329.70-76,782,050.20

Finding the Fourth Proportional to 213,092,219.80, 319,638,329.70 and 76,782,050.20

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Solution

The fourth proportional to 213,092,219.80, 319,638,329.70 and 76,782,050.20 is: 115,173,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,092,219.80 : 319,638,329.70 = 76,782,050.20 : x
  2. Step 2: Convert to fraction form
    213,092,219.80/319,638,329.70 = 76,782,050.20/x
  3. Step 3: Cross multiply
    213,092,219.80x = 319,638,329.70 × 76,782,050.20
  4. Step 4: Simplify right side
    213,092,219.80x = 24,542,486,276,869,552
  5. Step 5: Solve for x
    x = 24,542,486,276,869,552/213,092,219.80
  6. Step 6: Final answer
    x = 115,173,075.30

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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.