Home / 147,635,637.80-221,453,456.70-90,240,009.80

Finding the Fourth Proportional to 147,635,637.80, 221,453,456.70 and 90,240,009.80

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Solution

The fourth proportional to 147,635,637.80, 221,453,456.70 and 90,240,009.80 is: 135,360,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,635,637.80 : 221,453,456.70 = 90,240,009.80 : x
  2. Step 2: Convert to fraction form
    147,635,637.80/221,453,456.70 = 90,240,009.80/x
  3. Step 3: Cross multiply
    147,635,637.80x = 221,453,456.70 × 90,240,009.80
  4. Step 4: Simplify right side
    147,635,637.80x = 19,983,962,102,851,872
  5. Step 5: Solve for x
    x = 19,983,962,102,851,872/147,635,637.80
  6. Step 6: Final answer
    x = 135,360,014.70

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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.