Home / 8,458,317.14-11,671,946.16-4,787,978.72

Finding the Fourth Proportional to 8,458,317.14, 11,671,946.16 and 4,787,978.72

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Solution

The fourth proportional to 8,458,317.14, 11,671,946.16 and 4,787,978.72 is: 6,607,109.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,458,317.14 : 11,671,946.16 = 4,787,978.72 : x
  2. Step 2: Convert to fraction form
    8,458,317.14/11,671,946.16 = 4,787,978.72/x
  3. Step 3: Cross multiply
    8,458,317.14x = 11,671,946.16 × 4,787,978.72
  4. Step 4: Simplify right side
    8,458,317.14x = 55,885,029,835,065.71
  5. Step 5: Solve for x
    x = 55,885,029,835,065.71/8,458,317.14
  6. Step 6: Final answer
    x = 6,607,109.77

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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.