Home / 108,871,009.20-163,320,510.60-54,311,482.80

Finding the Fourth Proportional to 108,871,009.20, 163,320,510.60 and 54,311,482.80

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Solution

The fourth proportional to 108,871,009.20, 163,320,510.60 and 54,311,482.80 is: 81,474,206.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,871,009.20 : 163,320,510.60 = 54,311,482.80 : x
  2. Step 2: Convert to fraction form
    108,871,009.20/163,320,510.60 = 54,311,482.80/x
  3. Step 3: Cross multiply
    108,871,009.20x = 163,320,510.60 × 54,311,482.80
  4. Step 4: Simplify right side
    108,871,009.20x = 8,870,179,102,339,117
  5. Step 5: Solve for x
    x = 8,870,179,102,339,117/108,871,009.20
  6. Step 6: Final answer
    x = 81,474,206.66

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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.