Home / 156,104,396.45-215,423,898.81-85,541,727.23

Finding the Fourth Proportional to 156,104,396.45, 215,423,898.81 and 85,541,727.23

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Solution

The fourth proportional to 156,104,396.45, 215,423,898.81 and 85,541,727.23 is: 118,047,491.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,104,396.45 : 215,423,898.81 = 85,541,727.23 : x
  2. Step 2: Convert to fraction form
    156,104,396.45/215,423,898.81 = 85,541,727.23/x
  3. Step 3: Cross multiply
    156,104,396.45x = 215,423,898.81 × 85,541,727.23
  4. Step 4: Simplify right side
    156,104,396.45x = 18,427,732,390,828,144
  5. Step 5: Solve for x
    x = 18,427,732,390,828,144/156,104,396.45
  6. Step 6: Final answer
    x = 118,047,491.36

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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.