Home / 42,805,450.08-64,214,456.40-20,088,643.68

Finding the Fourth Proportional to 42,805,450.08, 64,214,456.40 and 20,088,643.68

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Solution

The fourth proportional to 42,805,450.08, 64,214,456.40 and 20,088,643.68 is: 30,135,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,805,450.08 : 64,214,456.40 = 20,088,643.68 : x
  2. Step 2: Convert to fraction form
    42,805,450.08/64,214,456.40 = 20,088,643.68/x
  3. Step 3: Cross multiply
    42,805,450.08x = 64,214,456.40 × 20,088,643.68
  4. Step 4: Simplify right side
    42,805,450.08x = 1,289,981,333,724,495.50
  5. Step 5: Solve for x
    x = 1,289,981,333,724,495.50/42,805,450.08
  6. Step 6: Final answer
    x = 30,135,913.33

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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.