Home / 156,104,394.45-215,423,896.05-85,541,725.23

Finding the Fourth Proportional to 156,104,394.45, 215,423,896.05 and 85,541,725.23

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Solution

The fourth proportional to 156,104,394.45, 215,423,896.05 and 85,541,725.23 is: 118,047,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,104,394.45 : 215,423,896.05 = 85,541,725.23 : x
  2. Step 2: Convert to fraction form
    156,104,394.45/215,423,896.05 = 85,541,725.23/x
  3. Step 3: Cross multiply
    156,104,394.45x = 215,423,896.05 × 85,541,725.23
  4. Step 4: Simplify right side
    156,104,394.45x = 18,427,731,723,885,184
  5. Step 5: Solve for x
    x = 18,427,731,723,885,184/156,104,394.45
  6. Step 6: Final answer
    x = 118,047,488.60

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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.