Home / 18,538,900.86-27,772,482-10,427,230.38

Finding the Fourth Proportional to 18,538,900.86, 27,772,482 and 10,427,230.38

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Solution

The fourth proportional to 18,538,900.86, 27,772,482 and 10,427,230.38 is: 15,620,670.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538,900.86 : 27,772,482 = 10,427,230.38 : x
  2. Step 2: Convert to fraction form
    18,538,900.86/27,772,482 = 10,427,230.38/x
  3. Step 3: Cross multiply
    18,538,900.86x = 27,772,482 × 10,427,230.38
  4. Step 4: Simplify right side
    18,538,900.86x = 289,590,068,038,403.19
  5. Step 5: Solve for x
    x = 289,590,068,038,403.19/18,538,900.86
  6. Step 6: Final answer
    x = 15,620,670.84

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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.