Home / 108,872,426.80-163,308,640.20-72,592,721.20

Finding the Fourth Proportional to 108,872,426.80, 163,308,640.20 and 72,592,721.20

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Solution

The fourth proportional to 108,872,426.80, 163,308,640.20 and 72,592,721.20 is: 108,889,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,872,426.80 : 163,308,640.20 = 72,592,721.20 : x
  2. Step 2: Convert to fraction form
    108,872,426.80/163,308,640.20 = 72,592,721.20/x
  3. Step 3: Cross multiply
    108,872,426.80x = 163,308,640.20 × 72,592,721.20
  4. Step 4: Simplify right side
    108,872,426.80x = 11,855,018,587,589,712
  5. Step 5: Solve for x
    x = 11,855,018,587,589,712/108,872,426.80
  6. Step 6: Final answer
    x = 108,889,081.80

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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.