Home / 11,470,371.78-15,830,624.64-6,886,988.40

Finding the Fourth Proportional to 11,470,371.78, 15,830,624.64 and 6,886,988.40

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Solution

The fourth proportional to 11,470,371.78, 15,830,624.64 and 6,886,988.40 is: 9,504,951.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,470,371.78 : 15,830,624.64 = 6,886,988.40 : x
  2. Step 2: Convert to fraction form
    11,470,371.78/15,830,624.64 = 6,886,988.40/x
  3. Step 3: Cross multiply
    11,470,371.78x = 15,830,624.64 × 6,886,988.40
  4. Step 4: Simplify right side
    11,470,371.78x = 109,025,328,260,434.19
  5. Step 5: Solve for x
    x = 109,025,328,260,434.19/11,470,371.78
  6. Step 6: Final answer
    x = 9,504,951.57

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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.