Home / 291,334,700.12-402,037,194.15-159,172,858.85

Finding the Fourth Proportional to 291,334,700.12, 402,037,194.15 and 159,172,858.85

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Solution

The fourth proportional to 291,334,700.12, 402,037,194.15 and 159,172,858.85 is: 219,655,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,334,700.12 : 402,037,194.15 = 159,172,858.85 : x
  2. Step 2: Convert to fraction form
    291,334,700.12/402,037,194.15 = 159,172,858.85/x
  3. Step 3: Cross multiply
    291,334,700.12x = 402,037,194.15 × 159,172,858.85
  4. Step 4: Simplify right side
    291,334,700.12x = 63,993,409,554,877,808
  5. Step 5: Solve for x
    x = 63,993,409,554,877,808/291,334,700.12
  6. Step 6: Final answer
    x = 219,655,981.69

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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.