Home / 100,345,749.36-138,536,502.48-63,207,863.16

Finding the Fourth Proportional to 100,345,749.36, 138,536,502.48 and 63,207,863.16

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Solution

The fourth proportional to 100,345,749.36, 138,536,502.48 and 63,207,863.16 is: 87,264,247.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,345,749.36 : 138,536,502.48 = 63,207,863.16 : x
  2. Step 2: Convert to fraction form
    100,345,749.36/138,536,502.48 = 63,207,863.16/x
  3. Step 3: Cross multiply
    100,345,749.36x = 138,536,502.48 × 63,207,863.16
  4. Step 4: Simplify right side
    100,345,749.36x = 8,756,596,291,420,839
  5. Step 5: Solve for x
    x = 8,756,596,291,420,839/100,345,749.36
  6. Step 6: Final answer
    x = 87,264,247.34

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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.