Home / 19,928,145.40-29,892,218.10-7,146,989.35

Finding the Fourth Proportional to 19,928,145.40, 29,892,218.10 and 7,146,989.35

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Solution

The fourth proportional to 19,928,145.40, 29,892,218.10 and 7,146,989.35 is: 10,720,484.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928,145.40 : 29,892,218.10 = 7,146,989.35 : x
  2. Step 2: Convert to fraction form
    19,928,145.40/29,892,218.10 = 7,146,989.35/x
  3. Step 3: Cross multiply
    19,928,145.40x = 29,892,218.10 × 7,146,989.35
  4. Step 4: Simplify right side
    19,928,145.40x = 213,639,364,408,577.25
  5. Step 5: Solve for x
    x = 213,639,364,408,577.25/19,928,145.40
  6. Step 6: Final answer
    x = 10,720,484.03

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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.