Home / 108,891,213.80-150,280,464.66-81,341,312.36

Finding the Fourth Proportional to 108,891,213.80, 150,280,464.66 and 81,341,312.36

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Solution

The fourth proportional to 108,891,213.80, 150,280,464.66 and 81,341,312.36 is: 112,258,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,891,213.80 : 150,280,464.66 = 81,341,312.36 : x
  2. Step 2: Convert to fraction form
    108,891,213.80/150,280,464.66 = 81,341,312.36/x
  3. Step 3: Cross multiply
    108,891,213.80x = 150,280,464.66 × 81,341,312.36
  4. Step 4: Simplify right side
    108,891,213.80x = 12,224,010,217,515,000
  5. Step 5: Solve for x
    x = 12,224,010,217,515,000/108,891,213.80
  6. Step 6: Final answer
    x = 112,258,921.46

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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.