Home / 8,529,643.40-12,775,802.70-5,157,969.80

Finding the Fourth Proportional to 8,529,643.40, 12,775,802.70 and 5,157,969.80

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Solution

The fourth proportional to 8,529,643.40, 12,775,802.70 and 5,157,969.80 is: 7,725,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529,643.40 : 12,775,802.70 = 5,157,969.80 : x
  2. Step 2: Convert to fraction form
    8,529,643.40/12,775,802.70 = 5,157,969.80/x
  3. Step 3: Cross multiply
    8,529,643.40x = 12,775,802.70 × 5,157,969.80
  4. Step 4: Simplify right side
    8,529,643.40x = 65,897,204,497,358.45
  5. Step 5: Solve for x
    x = 65,897,204,497,358.45/8,529,643.40
  6. Step 6: Final answer
    x = 7,725,669.34

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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.