Home / 84,130,956.36-126,418,367.70-45,298,119.72

Finding the Fourth Proportional to 84,130,956.36, 126,418,367.70 and 45,298,119.72

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Solution

The fourth proportional to 84,130,956.36, 126,418,367.70 and 45,298,119.72 is: 68,066,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,130,956.36 : 126,418,367.70 = 45,298,119.72 : x
  2. Step 2: Convert to fraction form
    84,130,956.36/126,418,367.70 = 45,298,119.72/x
  3. Step 3: Cross multiply
    84,130,956.36x = 126,418,367.70 × 45,298,119.72
  4. Step 4: Simplify right side
    84,130,956.36x = 5,726,514,354,881,581
  5. Step 5: Solve for x
    x = 5,726,514,354,881,581/84,130,956.36
  6. Step 6: Final answer
    x = 68,066,673.70

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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.