Home / 9,328,656.34-12,872,980.19-5,142,158.13

Finding the Fourth Proportional to 9,328,656.34, 12,872,980.19 and 5,142,158.13

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Solution

The fourth proportional to 9,328,656.34, 12,872,980.19 and 5,142,158.13 is: 7,095,866.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328,656.34 : 12,872,980.19 = 5,142,158.13 : x
  2. Step 2: Convert to fraction form
    9,328,656.34/12,872,980.19 = 5,142,158.13/x
  3. Step 3: Cross multiply
    9,328,656.34x = 12,872,980.19 × 5,142,158.13
  4. Step 4: Simplify right side
    9,328,656.34x = 66,194,899,715,626.66
  5. Step 5: Solve for x
    x = 66,194,899,715,626.66/9,328,656.34
  6. Step 6: Final answer
    x = 7,095,866.47

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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.