Home / 130,433,664.40-195,650,496.60-128,418,125.20

Finding the Fourth Proportional to 130,433,664.40, 195,650,496.60 and 128,418,125.20

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Solution

The fourth proportional to 130,433,664.40, 195,650,496.60 and 128,418,125.20 is: 192,627,187.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,433,664.40 : 195,650,496.60 = 128,418,125.20 : x
  2. Step 2: Convert to fraction form
    130,433,664.40/195,650,496.60 = 128,418,125.20/x
  3. Step 3: Cross multiply
    130,433,664.40x = 195,650,496.60 × 128,418,125.20
  4. Step 4: Simplify right side
    130,433,664.40x = 25,125,069,967,820,976
  5. Step 5: Solve for x
    x = 25,125,069,967,820,976/130,433,664.40
  6. Step 6: Final answer
    x = 192,627,187.80

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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.