Home / 291,334,697.87-402,037,191.05-159,172,856.60

Finding the Fourth Proportional to 291,334,697.87, 402,037,191.05 and 159,172,856.60

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Solution

The fourth proportional to 291,334,697.87, 402,037,191.05 and 159,172,856.60 is: 219,655,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,334,697.87 : 402,037,191.05 = 159,172,856.60 : x
  2. Step 2: Convert to fraction form
    291,334,697.87/402,037,191.05 = 159,172,856.60/x
  3. Step 3: Cross multiply
    291,334,697.87x = 402,037,191.05 × 159,172,856.60
  4. Step 4: Simplify right side
    291,334,697.87x = 63,993,408,156,062,408
  5. Step 5: Solve for x
    x = 63,993,408,156,062,408/291,334,697.87
  6. Step 6: Final answer
    x = 219,655,978.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.