Home / 108,872,392.20-163,308,588.30-72,592,686.60

Finding the Fourth Proportional to 108,872,392.20, 163,308,588.30 and 72,592,686.60

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Solution

The fourth proportional to 108,872,392.20, 163,308,588.30 and 72,592,686.60 is: 108,889,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,872,392.20 : 163,308,588.30 = 72,592,686.60 : x
  2. Step 2: Convert to fraction form
    108,872,392.20/163,308,588.30 = 72,592,686.60/x
  3. Step 3: Cross multiply
    108,872,392.20x = 163,308,588.30 × 72,592,686.60
  4. Step 4: Simplify right side
    108,872,392.20x = 11,855,009,169,550,326
  5. Step 5: Solve for x
    x = 11,855,009,169,550,326/108,872,392.20
  6. Step 6: Final answer
    x = 108,889,029.90

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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.