Home / 121,748,357.54-168,152,362.38-80,118,271.91

Finding the Fourth Proportional to 121,748,357.54, 168,152,362.38 and 80,118,271.91

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Solution

The fourth proportional to 121,748,357.54, 168,152,362.38 and 80,118,271.91 is: 110,655,100.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,748,357.54 : 168,152,362.38 = 80,118,271.91 : x
  2. Step 2: Convert to fraction form
    121,748,357.54/168,152,362.38 = 80,118,271.91/x
  3. Step 3: Cross multiply
    121,748,357.54x = 168,152,362.38 × 80,118,271.91
  4. Step 4: Simplify right side
    121,748,357.54x = 13,472,076,691,469,694
  5. Step 5: Solve for x
    x = 13,472,076,691,469,694/121,748,357.54
  6. Step 6: Final answer
    x = 110,655,100.11

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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.