Home / 19,187,970.67-28,778,802.58-6,889,388.01

Finding the Fourth Proportional to 19,187,970.67, 28,778,802.58 and 6,889,388.01

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Solution

The fourth proportional to 19,187,970.67, 28,778,802.58 and 6,889,388.01 is: 10,332,949.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187,970.67 : 28,778,802.58 = 6,889,388.01 : x
  2. Step 2: Convert to fraction form
    19,187,970.67/28,778,802.58 = 6,889,388.01/x
  3. Step 3: Cross multiply
    19,187,970.67x = 28,778,802.58 × 6,889,388.01
  4. Step 4: Simplify right side
    19,187,970.67x = 198,268,337,436,809.06
  5. Step 5: Solve for x
    x = 198,268,337,436,809.06/19,187,970.67
  6. Step 6: Final answer
    x = 10,332,949.79

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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.