Home / 45,408,005.20-68,112,007.80-21,520,133.20

Finding the Fourth Proportional to 45,408,005.20, 68,112,007.80 and 21,520,133.20

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Solution

The fourth proportional to 45,408,005.20, 68,112,007.80 and 21,520,133.20 is: 32,280,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,408,005.20 : 68,112,007.80 = 21,520,133.20 : x
  2. Step 2: Convert to fraction form
    45,408,005.20/68,112,007.80 = 21,520,133.20/x
  3. Step 3: Cross multiply
    45,408,005.20x = 68,112,007.80 × 21,520,133.20
  4. Step 4: Simplify right side
    45,408,005.20x = 1,465,779,480,375,438.75
  5. Step 5: Solve for x
    x = 1,465,779,480,375,438.75/45,408,005.20
  6. Step 6: Final answer
    x = 32,280,199.80

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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.