Home / 30,528,036.30-45,778,057.65-13,479,933.90

Finding the Fourth Proportional to 30,528,036.30, 45,778,057.65 and 13,479,933.90

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Solution

The fourth proportional to 30,528,036.30, 45,778,057.65 and 13,479,933.90 is: 20,213,720.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528,036.30 : 45,778,057.65 = 13,479,933.90 : x
  2. Step 2: Convert to fraction form
    30,528,036.30/45,778,057.65 = 13,479,933.90/x
  3. Step 3: Cross multiply
    30,528,036.30x = 45,778,057.65 × 13,479,933.90
  4. Step 4: Simplify right side
    30,528,036.30x = 617,085,191,192,389.38
  5. Step 5: Solve for x
    x = 617,085,191,192,389.38/30,528,036.30
  6. Step 6: Final answer
    x = 20,213,720.43

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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.