Home / 30,482,655.18-42,100,976.78-20,075,194.99

Finding the Fourth Proportional to 30,482,655.18, 42,100,976.78 and 20,075,194.99

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Solution

The fourth proportional to 30,482,655.18, 42,100,976.78 and 20,075,194.99 is: 27,726,761.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482,655.18 : 42,100,976.78 = 20,075,194.99 : x
  2. Step 2: Convert to fraction form
    30,482,655.18/42,100,976.78 = 20,075,194.99/x
  3. Step 3: Cross multiply
    30,482,655.18x = 42,100,976.78 × 20,075,194.99
  4. Step 4: Simplify right side
    30,482,655.18x = 845,185,318,127,962.25
  5. Step 5: Solve for x
    x = 845,185,318,127,962.25/30,482,655.18
  6. Step 6: Final answer
    x = 27,726,761.76

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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.