Home / 30,528,025.80-45,778,041.90-13,479,923.40

Finding the Fourth Proportional to 30,528,025.80, 45,778,041.90 and 13,479,923.40

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Solution

The fourth proportional to 30,528,025.80, 45,778,041.90 and 13,479,923.40 is: 20,213,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,025.80 : 45,778,041.90 = 13,479,923.40 : x
  2. Step 2: Convert to fraction form
    30,528,025.80/45,778,041.90 = 13,479,923.40/x
  3. Step 3: Cross multiply
    30,528,025.80x = 45,778,041.90 × 13,479,923.40
  4. Step 4: Simplify right side
    30,528,025.80x = 617,084,498,213,990.50
  5. Step 5: Solve for x
    x = 617,084,498,213,990.50/30,528,025.80
  6. Step 6: Final answer
    x = 20,213,704.69

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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.