Home / 87,228,133.20-130,842,199.80-70,222,021.20

Finding the Fourth Proportional to 87,228,133.20, 130,842,199.80 and 70,222,021.20

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Solution

The fourth proportional to 87,228,133.20, 130,842,199.80 and 70,222,021.20 is: 105,333,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,228,133.20 : 130,842,199.80 = 70,222,021.20 : x
  2. Step 2: Convert to fraction form
    87,228,133.20/130,842,199.80 = 70,222,021.20/x
  3. Step 3: Cross multiply
    87,228,133.20x = 130,842,199.80 × 70,222,021.20
  4. Step 4: Simplify right side
    87,228,133.20x = 9,188,003,728,210,236
  5. Step 5: Solve for x
    x = 9,188,003,728,210,236/87,228,133.20
  6. Step 6: Final answer
    x = 105,333,031.80

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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.