Home / 20,357,111.51-30,535,647.81-5,211,018.71

Finding the Fourth Proportional to 20,357,111.51, 30,535,647.81 and 5,211,018.71

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Solution

The fourth proportional to 20,357,111.51, 30,535,647.81 and 5,211,018.71 is: 7,816,523.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357,111.51 : 30,535,647.81 = 5,211,018.71 : x
  2. Step 2: Convert to fraction form
    20,357,111.51/30,535,647.81 = 5,211,018.71/x
  3. Step 3: Cross multiply
    20,357,111.51x = 30,535,647.81 × 5,211,018.71
  4. Step 4: Simplify right side
    20,357,111.51x = 159,121,832,059,880.53
  5. Step 5: Solve for x
    x = 159,121,832,059,880.53/20,357,111.51
  6. Step 6: Final answer
    x = 7,816,523.08

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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.