Home / 154,100,111.44-212,658,438-83,535,503.44

Finding the Fourth Proportional to 154,100,111.44, 212,658,438 and 83,535,503.44

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Solution

The fourth proportional to 154,100,111.44, 212,658,438 and 83,535,503.44 is: 115,279,148.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,100,111.44 : 212,658,438 = 83,535,503.44 : x
  2. Step 2: Convert to fraction form
    154,100,111.44/212,658,438 = 83,535,503.44/x
  3. Step 3: Cross multiply
    154,100,111.44x = 212,658,438 × 83,535,503.44
  4. Step 4: Simplify right side
    154,100,111.44x = 17,764,529,679,094,026
  5. Step 5: Solve for x
    x = 17,764,529,679,094,026/154,100,111.44
  6. Step 6: Final answer
    x = 115,279,148.81

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1.5x scale

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.