Home / 30,528,021.80-45,778,035.90-13,479,919.40

Finding the Fourth Proportional to 30,528,021.80, 45,778,035.90 and 13,479,919.40

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Solution

The fourth proportional to 30,528,021.80, 45,778,035.90 and 13,479,919.40 is: 20,213,698.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,021.80 : 45,778,035.90 = 13,479,919.40 : x
  2. Step 2: Convert to fraction form
    30,528,021.80/45,778,035.90 = 13,479,919.40/x
  3. Step 3: Cross multiply
    30,528,021.80x = 45,778,035.90 × 13,479,919.40
  4. Step 4: Simplify right side
    30,528,021.80x = 617,084,234,222,306.50
  5. Step 5: Solve for x
    x = 617,084,234,222,306.50/30,528,021.80
  6. Step 6: Final answer
    x = 20,213,698.69

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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.