Home / 7,298,143.72-10,071,413.10-4,078,879.72

Finding the Fourth Proportional to 7,298,143.72, 10,071,413.10 and 4,078,879.72

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Solution

The fourth proportional to 7,298,143.72, 10,071,413.10 and 4,078,879.72 is: 5,628,839.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,298,143.72 : 10,071,413.10 = 4,078,879.72 : x
  2. Step 2: Convert to fraction form
    7,298,143.72/10,071,413.10 = 4,078,879.72/x
  3. Step 3: Cross multiply
    7,298,143.72x = 10,071,413.10 × 4,078,879.72
  4. Step 4: Simplify right side
    7,298,143.72x = 41,080,082,645,332.34
  5. Step 5: Solve for x
    x = 41,080,082,645,332.34/7,298,143.72
  6. Step 6: Final answer
    x = 5,628,839.91

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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.