Home / 8,938,512.70-13,407,769.05-4,679,986.30

Finding the Fourth Proportional to 8,938,512.70, 13,407,769.05 and 4,679,986.30

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Solution

The fourth proportional to 8,938,512.70, 13,407,769.05 and 4,679,986.30 is: 7,019,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938,512.70 : 13,407,769.05 = 4,679,986.30 : x
  2. Step 2: Convert to fraction form
    8,938,512.70/13,407,769.05 = 4,679,986.30/x
  3. Step 3: Cross multiply
    8,938,512.70x = 13,407,769.05 × 4,679,986.30
  4. Step 4: Simplify right side
    8,938,512.70x = 62,748,175,467,564.02
  5. Step 5: Solve for x
    x = 62,748,175,467,564.02/8,938,512.70
  6. Step 6: Final answer
    x = 7,019,979.45

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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.