Home / 189,256,875.30-283,905,247.46-78,579,978.66

Finding the Fourth Proportional to 189,256,875.30, 283,905,247.46 and 78,579,978.66

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Solution

The fourth proportional to 189,256,875.30, 283,905,247.46 and 78,579,978.66 is: 117,878,244.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,256,875.30 : 283,905,247.46 = 78,579,978.66 : x
  2. Step 2: Convert to fraction form
    189,256,875.30/283,905,247.46 = 78,579,978.66/x
  3. Step 3: Cross multiply
    189,256,875.30x = 283,905,247.46 × 78,579,978.66
  4. Step 4: Simplify right side
    189,256,875.30x = 22,309,268,286,475,916
  5. Step 5: Solve for x
    x = 22,309,268,286,475,916/189,256,875.30
  6. Step 6: Final answer
    x = 117,878,244.85

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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.