Home / 166,486,905.12-249,616,852.38-84,447,588.90

Finding the Fourth Proportional to 166,486,905.12, 249,616,852.38 and 84,447,588.90

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Solution

The fourth proportional to 166,486,905.12, 249,616,852.38 and 84,447,588.90 is: 126,613,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,486,905.12 : 249,616,852.38 = 84,447,588.90 : x
  2. Step 2: Convert to fraction form
    166,486,905.12/249,616,852.38 = 84,447,588.90/x
  3. Step 3: Cross multiply
    166,486,905.12x = 249,616,852.38 × 84,447,588.90
  4. Step 4: Simplify right side
    166,486,905.12x = 21,079,541,332,298,228
  5. Step 5: Solve for x
    x = 21,079,541,332,298,228/166,486,905.12
  6. Step 6: Final answer
    x = 126,613,809.76

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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.