Home / 12,687,653.40-19,031,480.10-3,102,907.20

Finding the Fourth Proportional to 12,687,653.40, 19,031,480.10 and 3,102,907.20

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Solution

The fourth proportional to 12,687,653.40, 19,031,480.10 and 3,102,907.20 is: 4,654,360.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,653.40 : 19,031,480.10 = 3,102,907.20 : x
  2. Step 2: Convert to fraction form
    12,687,653.40/19,031,480.10 = 3,102,907.20/x
  3. Step 3: Cross multiply
    12,687,653.40x = 19,031,480.10 × 3,102,907.20
  4. Step 4: Simplify right side
    12,687,653.40x = 59,052,916,628,946.73
  5. Step 5: Solve for x
    x = 59,052,916,628,946.73/12,687,653.40
  6. Step 6: Final answer
    x = 4,654,360.80

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1.5x scale

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.