Home / 12,740,036.32-17,580,170.16-7,157,845.79

Finding the Fourth Proportional to 12,740,036.32, 17,580,170.16 and 7,157,845.79

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Solution

The fourth proportional to 12,740,036.32, 17,580,170.16 and 7,157,845.79 is: 9,877,220.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740,036.32 : 17,580,170.16 = 7,157,845.79 : x
  2. Step 2: Convert to fraction form
    12,740,036.32/17,580,170.16 = 7,157,845.79/x
  3. Step 3: Cross multiply
    12,740,036.32x = 17,580,170.16 × 7,157,845.79
  4. Step 4: Simplify right side
    12,740,036.32x = 125,836,146,931,450.41
  5. Step 5: Solve for x
    x = 125,836,146,931,450.41/12,740,036.32
  6. Step 6: Final answer
    x = 9,877,220.42

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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.