Home / 8,705,491.28-12,009,851.36-5,436,631

Finding the Fourth Proportional to 8,705,491.28, 12,009,851.36 and 5,436,631

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Solution

The fourth proportional to 8,705,491.28, 12,009,851.36 and 5,436,631 is: 7,500,223.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705,491.28 : 12,009,851.36 = 5,436,631 : x
  2. Step 2: Convert to fraction form
    8,705,491.28/12,009,851.36 = 5,436,631/x
  3. Step 3: Cross multiply
    8,705,491.28x = 12,009,851.36 × 5,436,631
  4. Step 4: Simplify right side
    8,705,491.28x = 65,293,130,209,168.16
  5. Step 5: Solve for x
    x = 65,293,130,209,168.16/8,705,491.28
  6. Step 6: Final answer
    x = 7,500,223.49

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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.