Home / 18,639,368.28-25,721,500.86-10,379,856.60

Finding the Fourth Proportional to 18,639,368.28, 25,721,500.86 and 10,379,856.60

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Solution

The fourth proportional to 18,639,368.28, 25,721,500.86 and 10,379,856.60 is: 14,323,741.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,639,368.28 : 25,721,500.86 = 10,379,856.60 : x
  2. Step 2: Convert to fraction form
    18,639,368.28/25,721,500.86 = 10,379,856.60/x
  3. Step 3: Cross multiply
    18,639,368.28x = 25,721,500.86 × 10,379,856.60
  4. Step 4: Simplify right side
    18,639,368.28x = 266,985,490,463,576.66
  5. Step 5: Solve for x
    x = 266,985,490,463,576.66/18,639,368.28
  6. Step 6: Final answer
    x = 14,323,741.37

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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.