Home / 9,108,686.91-12,569,644.38-4,978,683.21

Finding the Fourth Proportional to 9,108,686.91, 12,569,644.38 and 4,978,683.21

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Solution

The fourth proportional to 9,108,686.91, 12,569,644.38 and 4,978,683.21 is: 6,870,395.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108,686.91 : 12,569,644.38 = 4,978,683.21 : x
  2. Step 2: Convert to fraction form
    9,108,686.91/12,569,644.38 = 4,978,683.21/x
  3. Step 3: Cross multiply
    9,108,686.91x = 12,569,644.38 × 4,978,683.21
  4. Step 4: Simplify right side
    9,108,686.91x = 62,580,277,386,506.03
  5. Step 5: Solve for x
    x = 62,580,277,386,506.03/9,108,686.91
  6. Step 6: Final answer
    x = 6,870,395.04

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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.