Home / 28,512,943.80-42,771,054.10-8,321,302.20

Finding the Fourth Proportional to 28,512,943.80, 42,771,054.10 and 8,321,302.20

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Solution

The fourth proportional to 28,512,943.80, 42,771,054.10 and 8,321,302.20 is: 12,482,431.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512,943.80 : 42,771,054.10 = 8,321,302.20 : x
  2. Step 2: Convert to fraction form
    28,512,943.80/42,771,054.10 = 8,321,302.20/x
  3. Step 3: Cross multiply
    28,512,943.80x = 42,771,054.10 × 8,321,302.20
  4. Step 4: Simplify right side
    28,512,943.80x = 355,910,866,578,649.06
  5. Step 5: Solve for x
    x = 355,910,866,578,649.06/28,512,943.80
  6. Step 6: Final answer
    x = 12,482,431.46

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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.