Home / 8,742,655-12,064,863.90-5,120,983

Finding the Fourth Proportional to 8,742,655, 12,064,863.90 and 5,120,983

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Solution

The fourth proportional to 8,742,655, 12,064,863.90 and 5,120,983 is: 7,066,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742,655 : 12,064,863.90 = 5,120,983 : x
  2. Step 2: Convert to fraction form
    8,742,655/12,064,863.90 = 5,120,983/x
  3. Step 3: Cross multiply
    8,742,655x = 12,064,863.90 × 5,120,983
  4. Step 4: Simplify right side
    8,742,655x = 61,783,962,929,213.70
  5. Step 5: Solve for x
    x = 61,783,962,929,213.70/8,742,655
  6. Step 6: Final answer
    x = 7,066,956.54

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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.