Home / 20,142,965.08-30,223,378.86-10,556,064.28

Finding the Fourth Proportional to 20,142,965.08, 30,223,378.86 and 10,556,064.28

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Solution

The fourth proportional to 20,142,965.08, 30,223,378.86 and 10,556,064.28 is: 15,838,776.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,965.08 : 30,223,378.86 = 10,556,064.28 : x
  2. Step 2: Convert to fraction form
    20,142,965.08/30,223,378.86 = 10,556,064.28/x
  3. Step 3: Cross multiply
    20,142,965.08x = 30,223,378.86 × 10,556,064.28
  4. Step 4: Simplify right side
    20,142,965.08x = 319,039,930,004,953.12
  5. Step 5: Solve for x
    x = 319,039,930,004,953.12/20,142,965.08
  6. Step 6: Final answer
    x = 15,838,776.90

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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.