Home / 111,905,810.20-167,858,715.30-66,444,203.80

Finding the Fourth Proportional to 111,905,810.20, 167,858,715.30 and 66,444,203.80

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Solution

The fourth proportional to 111,905,810.20, 167,858,715.30 and 66,444,203.80 is: 99,666,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,905,810.20 : 167,858,715.30 = 66,444,203.80 : x
  2. Step 2: Convert to fraction form
    111,905,810.20/167,858,715.30 = 66,444,203.80/x
  3. Step 3: Cross multiply
    111,905,810.20x = 167,858,715.30 × 66,444,203.80
  4. Step 4: Simplify right side
    111,905,810.20x = 11,153,238,688,999,378
  5. Step 5: Solve for x
    x = 11,153,238,688,999,378/111,905,810.20
  6. Step 6: Final answer
    x = 99,666,305.70

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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.