Home / 90,625,245.69-135,980,383.82-45,190,583.13

Finding the Fourth Proportional to 90,625,245.69, 135,980,383.82 and 45,190,583.13

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Solution

The fourth proportional to 90,625,245.69, 135,980,383.82 and 45,190,583.13 is: 67,807,075.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,625,245.69 : 135,980,383.82 = 45,190,583.13 : x
  2. Step 2: Convert to fraction form
    90,625,245.69/135,980,383.82 = 45,190,583.13/x
  3. Step 3: Cross multiply
    90,625,245.69x = 135,980,383.82 × 45,190,583.13
  4. Step 4: Simplify right side
    90,625,245.69x = 6,145,032,838,841,064
  5. Step 5: Solve for x
    x = 6,145,032,838,841,064/90,625,245.69
  6. Step 6: Final answer
    x = 67,807,075.08

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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.