Home / 9,315,948.69-12,855,870.48-5,185,972.32

Finding the Fourth Proportional to 9,315,948.69, 12,855,870.48 and 5,185,972.32

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Solution

The fourth proportional to 9,315,948.69, 12,855,870.48 and 5,185,972.32 is: 7,156,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315,948.69 : 12,855,870.48 = 5,185,972.32 : x
  2. Step 2: Convert to fraction form
    9,315,948.69/12,855,870.48 = 5,185,972.32/x
  3. Step 3: Cross multiply
    9,315,948.69x = 12,855,870.48 × 5,185,972.32
  4. Step 4: Simplify right side
    9,315,948.69x = 66,670,188,458,785.12
  5. Step 5: Solve for x
    x = 66,670,188,458,785.12/9,315,948.69
  6. Step 6: Final answer
    x = 7,156,564.58

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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.