Home / 108,878,712.60-163,129,112.10-91,872,600.60

Finding the Fourth Proportional to 108,878,712.60, 163,129,112.10 and 91,872,600.60

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Solution

The fourth proportional to 108,878,712.60, 163,129,112.10 and 91,872,600.60 is: 137,649,457.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,878,712.60 : 163,129,112.10 = 91,872,600.60 : x
  2. Step 2: Convert to fraction form
    108,878,712.60/163,129,112.10 = 91,872,600.60/x
  3. Step 3: Cross multiply
    108,878,712.60x = 163,129,112.10 × 91,872,600.60
  4. Step 4: Simplify right side
    108,878,712.60x = 14,987,095,762,195,926
  5. Step 5: Solve for x
    x = 14,987,095,762,195,926/108,878,712.60
  6. Step 6: Final answer
    x = 137,649,457.86

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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.