Home / 20,904,710.80-31,357,066.20-20,585,846.20

Finding the Fourth Proportional to 20,904,710.80, 31,357,066.20 and 20,585,846.20

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Solution

The fourth proportional to 20,904,710.80, 31,357,066.20 and 20,585,846.20 is: 30,878,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904,710.80 : 31,357,066.20 = 20,585,846.20 : x
  2. Step 2: Convert to fraction form
    20,904,710.80/31,357,066.20 = 20,585,846.20/x
  3. Step 3: Cross multiply
    20,904,710.80x = 31,357,066.20 × 20,585,846.20
  4. Step 4: Simplify right side
    20,904,710.80x = 645,511,742,076,418.38
  5. Step 5: Solve for x
    x = 645,511,742,076,418.38/20,904,710.80
  6. Step 6: Final answer
    x = 30,878,769.30

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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.