Home / 20,365,322.13-28,103,946.95-11,072,892.07

Finding the Fourth Proportional to 20,365,322.13, 28,103,946.95 and 11,072,892.07

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Solution

The fourth proportional to 20,365,322.13, 28,103,946.95 and 11,072,892.07 is: 15,280,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,365,322.13 : 28,103,946.95 = 11,072,892.07 : x
  2. Step 2: Convert to fraction form
    20,365,322.13/28,103,946.95 = 11,072,892.07/x
  3. Step 3: Cross multiply
    20,365,322.13x = 28,103,946.95 × 11,072,892.07
  4. Step 4: Simplify right side
    20,365,322.13x = 311,191,971,318,355.69
  5. Step 5: Solve for x
    x = 311,191,971,318,355.69/20,365,322.13
  6. Step 6: Final answer
    x = 15,280,483.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.