Home / 90,904,091.89-135,858,039.67-66,363,696.98

Finding the Fourth Proportional to 90,904,091.89, 135,858,039.67 and 66,363,696.98

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Solution

The fourth proportional to 90,904,091.89, 135,858,039.67 and 66,363,696.98 is: 99,181,913.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,904,091.89 : 135,858,039.67 = 66,363,696.98 : x
  2. Step 2: Convert to fraction form
    90,904,091.89/135,858,039.67 = 66,363,696.98/x
  3. Step 3: Cross multiply
    90,904,091.89x = 135,858,039.67 × 66,363,696.98
  4. Step 4: Simplify right side
    90,904,091.89x = 9,016,041,776,674,280
  5. Step 5: Solve for x
    x = 9,016,041,776,674,280/90,904,091.89
  6. Step 6: Final answer
    x = 99,181,913.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.