Home / 139,969,205.10-209,953,807.65-49,080,984.30

Finding the Fourth Proportional to 139,969,205.10, 209,953,807.65 and 49,080,984.30

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Solution

The fourth proportional to 139,969,205.10, 209,953,807.65 and 49,080,984.30 is: 73,621,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,205.10 : 209,953,807.65 = 49,080,984.30 : x
  2. Step 2: Convert to fraction form
    139,969,205.10/209,953,807.65 = 49,080,984.30/x
  3. Step 3: Cross multiply
    139,969,205.10x = 209,953,807.65 × 49,080,984.30
  4. Step 4: Simplify right side
    139,969,205.10x = 10,304,739,536,994,870
  5. Step 5: Solve for x
    x = 10,304,739,536,994,870/139,969,205.10
  6. Step 6: Final answer
    x = 73,621,476.45

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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.