Home / 154,650,815.32-213,220,009.38-126,670,447.48

Finding the Fourth Proportional to 154,650,815.32, 213,220,009.38 and 126,670,447.48

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Solution

The fourth proportional to 154,650,815.32, 213,220,009.38 and 126,670,447.48 is: 174,642,946.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,650,815.32 : 213,220,009.38 = 126,670,447.48 : x
  2. Step 2: Convert to fraction form
    154,650,815.32/213,220,009.38 = 126,670,447.48/x
  3. Step 3: Cross multiply
    154,650,815.32x = 213,220,009.38 × 126,670,447.48
  4. Step 4: Simplify right side
    154,650,815.32x = 27,008,673,999,854,396
  5. Step 5: Solve for x
    x = 27,008,673,999,854,396/154,650,815.32
  6. Step 6: Final answer
    x = 174,642,946.07

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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.