Home / 21,057,458.40-31,586,187.60-18,664,005.60

Finding the Fourth Proportional to 21,057,458.40, 31,586,187.60 and 18,664,005.60

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Solution

The fourth proportional to 21,057,458.40, 31,586,187.60 and 18,664,005.60 is: 27,996,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057,458.40 : 31,586,187.60 = 18,664,005.60 : x
  2. Step 2: Convert to fraction form
    21,057,458.40/31,586,187.60 = 18,664,005.60/x
  3. Step 3: Cross multiply
    21,057,458.40x = 31,586,187.60 × 18,664,005.60
  4. Step 4: Simplify right side
    21,057,458.40x = 589,524,782,249,050.62
  5. Step 5: Solve for x
    x = 589,524,782,249,050.62/21,057,458.40
  6. Step 6: Final answer
    x = 27,996,008.40

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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.