Home / 20,357,108.19-30,535,642.85-5,211,015.39

Finding the Fourth Proportional to 20,357,108.19, 30,535,642.85 and 5,211,015.39

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Solution

The fourth proportional to 20,357,108.19, 30,535,642.85 and 5,211,015.39 is: 7,816,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357,108.19 : 30,535,642.85 = 5,211,015.39 : x
  2. Step 2: Convert to fraction form
    20,357,108.19/30,535,642.85 = 5,211,015.39/x
  3. Step 3: Cross multiply
    20,357,108.19x = 30,535,642.85 × 5,211,015.39
  4. Step 4: Simplify right side
    20,357,108.19x = 159,121,704,808,838.38
  5. Step 5: Solve for x
    x = 159,121,704,808,838.38/20,357,108.19
  6. Step 6: Final answer
    x = 7,816,518.11

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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.