Home / 21,081,949.60-31,552,940.40-15,308,269.60

Finding the Fourth Proportional to 21,081,949.60, 31,552,940.40 and 15,308,269.60

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Solution

The fourth proportional to 21,081,949.60, 31,552,940.40 and 15,308,269.60 is: 22,911,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,081,949.60 : 31,552,940.40 = 15,308,269.60 : x
  2. Step 2: Convert to fraction form
    21,081,949.60/31,552,940.40 = 15,308,269.60/x
  3. Step 3: Cross multiply
    21,081,949.60x = 31,552,940.40 × 15,308,269.60
  4. Step 4: Simplify right side
    21,081,949.60x = 483,020,918,315,931.81
  5. Step 5: Solve for x
    x = 483,020,918,315,931.81/21,081,949.60
  6. Step 6: Final answer
    x = 22,911,586.81

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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.