Home / 138,899,260.58-208,348,781.51-41,854,969.31

Finding the Fourth Proportional to 138,899,260.58, 208,348,781.51 and 41,854,969.31

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Solution

The fourth proportional to 138,899,260.58, 208,348,781.51 and 41,854,969.31 is: 62,782,421.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,899,260.58 : 208,348,781.51 = 41,854,969.31 : x
  2. Step 2: Convert to fraction form
    138,899,260.58/208,348,781.51 = 41,854,969.31/x
  3. Step 3: Cross multiply
    138,899,260.58x = 208,348,781.51 × 41,854,969.31
  4. Step 4: Simplify right side
    138,899,260.58x = 8,720,431,854,939,838
  5. Step 5: Solve for x
    x = 8,720,431,854,939,838/138,899,260.58
  6. Step 6: Final answer
    x = 62,782,421.01

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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.