Home / 142,592,816.80-196,772,418.48-80,725,988.80

Finding the Fourth Proportional to 142,592,816.80, 196,772,418.48 and 80,725,988.80

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Solution

The fourth proportional to 142,592,816.80, 196,772,418.48 and 80,725,988.80 is: 111,398,655.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,592,816.80 : 196,772,418.48 = 80,725,988.80 : x
  2. Step 2: Convert to fraction form
    142,592,816.80/196,772,418.48 = 80,725,988.80/x
  3. Step 3: Cross multiply
    142,592,816.80x = 196,772,418.48 × 80,725,988.80
  4. Step 4: Simplify right side
    142,592,816.80x = 15,884,648,050,365,392
  5. Step 5: Solve for x
    x = 15,884,648,050,365,392/142,592,816.80
  6. Step 6: Final answer
    x = 111,398,655.32

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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.