Home / 8,312,935.80-11,479,774.14-7,860,054.72

Finding the Fourth Proportional to 8,312,935.80, 11,479,774.14 and 7,860,054.72

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Solution

The fourth proportional to 8,312,935.80, 11,479,774.14 and 7,860,054.72 is: 10,854,366.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312,935.80 : 11,479,774.14 = 7,860,054.72 : x
  2. Step 2: Convert to fraction form
    8,312,935.80/11,479,774.14 = 7,860,054.72/x
  3. Step 3: Cross multiply
    8,312,935.80x = 11,479,774.14 × 7,860,054.72
  4. Step 4: Simplify right side
    8,312,935.80x = 90,231,652,913,640.94
  5. Step 5: Solve for x
    x = 90,231,652,913,640.94/8,312,935.80
  6. Step 6: Final answer
    x = 10,854,366.63

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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.