Home / 8,506,905.40-12,762,261.60-3,115,448.20

Finding the Fourth Proportional to 8,506,905.40, 12,762,261.60 and 3,115,448.20

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Solution

The fourth proportional to 8,506,905.40, 12,762,261.60 and 3,115,448.20 is: 4,673,869.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,506,905.40 : 12,762,261.60 = 3,115,448.20 : x
  2. Step 2: Convert to fraction form
    8,506,905.40/12,762,261.60 = 3,115,448.20/x
  3. Step 3: Cross multiply
    8,506,905.40x = 12,762,261.60 × 3,115,448.20
  4. Step 4: Simplify right side
    8,506,905.40x = 39,760,164,929,649.12
  5. Step 5: Solve for x
    x = 39,760,164,929,649.12/8,506,905.40
  6. Step 6: Final answer
    x = 4,673,869.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.