Home / 79,847,865.40-119,720,290.74-31,330,620.40

Finding the Fourth Proportional to 79,847,865.40, 119,720,290.74 and 31,330,620.40

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Solution

The fourth proportional to 79,847,865.40, 119,720,290.74 and 31,330,620.40 is: 46,975,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,847,865.40 : 119,720,290.74 = 31,330,620.40 : x
  2. Step 2: Convert to fraction form
    79,847,865.40/119,720,290.74 = 31,330,620.40/x
  3. Step 3: Cross multiply
    79,847,865.40x = 119,720,290.74 × 31,330,620.40
  4. Step 4: Simplify right side
    79,847,865.40x = 3,750,910,983,352,574.50
  5. Step 5: Solve for x
    x = 3,750,910,983,352,574.50/79,847,865.40
  6. Step 6: Final answer
    x = 46,975,720.20

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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.