Home / 9,139,513.07-12,612,528.17-5,065,394.51

Finding the Fourth Proportional to 9,139,513.07, 12,612,528.17 and 5,065,394.51

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Solution

The fourth proportional to 9,139,513.07, 12,612,528.17 and 5,065,394.51 is: 6,990,244.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139,513.07 : 12,612,528.17 = 5,065,394.51 : x
  2. Step 2: Convert to fraction form
    9,139,513.07/12,612,528.17 = 5,065,394.51/x
  3. Step 3: Cross multiply
    9,139,513.07x = 12,612,528.17 × 5,065,394.51
  4. Step 4: Simplify right side
    9,139,513.07x = 63,887,430,861,148.73
  5. Step 5: Solve for x
    x = 63,887,430,861,148.73/9,139,513.07
  6. Step 6: Final answer
    x = 6,990,244.49

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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.