Home / 108,712,767.78-149,966,449.62-64,628,408.28

Finding the Fourth Proportional to 108,712,767.78, 149,966,449.62 and 64,628,408.28

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Solution

The fourth proportional to 108,712,767.78, 149,966,449.62 and 64,628,408.28 is: 89,153,216.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,712,767.78 : 149,966,449.62 = 64,628,408.28 : x
  2. Step 2: Convert to fraction form
    108,712,767.78/149,966,449.62 = 64,628,408.28/x
  3. Step 3: Cross multiply
    108,712,767.78x = 149,966,449.62 × 64,628,408.28
  4. Step 4: Simplify right side
    108,712,767.78x = 9,692,092,934,343,412
  5. Step 5: Solve for x
    x = 9,692,092,934,343,412/108,712,767.78
  6. Step 6: Final answer
    x = 89,153,216.61

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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.