Home / 26,485,420.78-39,728,885.70-7,316,179.88

Finding the Fourth Proportional to 26,485,420.78, 39,728,885.70 and 7,316,179.88

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Solution

The fourth proportional to 26,485,420.78, 39,728,885.70 and 7,316,179.88 is: 10,974,478.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,485,420.78 : 39,728,885.70 = 7,316,179.88 : x
  2. Step 2: Convert to fraction form
    26,485,420.78/39,728,885.70 = 7,316,179.88/x
  3. Step 3: Cross multiply
    26,485,420.78x = 39,728,885.70 × 7,316,179.88
  4. Step 4: Simplify right side
    26,485,420.78x = 290,663,674,213,159.75
  5. Step 5: Solve for x
    x = 290,663,674,213,159.75/26,485,420.78
  6. Step 6: Final answer
    x = 10,974,478.25

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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.