Home / 80,224,699.19-120,302,006.30-28,392,074.78

Finding the Fourth Proportional to 80,224,699.19, 120,302,006.30 and 28,392,074.78

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Solution

The fourth proportional to 80,224,699.19, 120,302,006.30 and 28,392,074.78 is: 42,575,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,224,699.19 : 120,302,006.30 = 28,392,074.78 : x
  2. Step 2: Convert to fraction form
    80,224,699.19/120,302,006.30 = 28,392,074.78/x
  3. Step 3: Cross multiply
    80,224,699.19x = 120,302,006.30 × 28,392,074.78
  4. Step 4: Simplify right side
    80,224,699.19x = 3,415,623,558,911,671
  5. Step 5: Solve for x
    x = 3,415,623,558,911,671/80,224,699.19
  6. Step 6: Final answer
    x = 42,575,710.39

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1.5x scale

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.