Home / 9,139,847.21-12,612,718.53-5,009,790.05

Finding the Fourth Proportional to 9,139,847.21, 12,612,718.53 and 5,009,790.05

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Solution

The fourth proportional to 9,139,847.21, 12,612,718.53 and 5,009,790.05 is: 6,913,361.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139,847.21 : 12,612,718.53 = 5,009,790.05 : x
  2. Step 2: Convert to fraction form
    9,139,847.21/12,612,718.53 = 5,009,790.05/x
  3. Step 3: Cross multiply
    9,139,847.21x = 12,612,718.53 × 5,009,790.05
  4. Step 4: Simplify right side
    9,139,847.21x = 63,187,071,795,044.62
  5. Step 5: Solve for x
    x = 63,187,071,795,044.62/9,139,847.21
  6. Step 6: Final answer
    x = 6,913,361.94

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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.