Home / 45,408,001.20-68,112,001.80-21,520,129.20

Finding the Fourth Proportional to 45,408,001.20, 68,112,001.80 and 21,520,129.20

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Solution

The fourth proportional to 45,408,001.20, 68,112,001.80 and 21,520,129.20 is: 32,280,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,408,001.20 : 68,112,001.80 = 21,520,129.20 : x
  2. Step 2: Convert to fraction form
    45,408,001.20/68,112,001.80 = 21,520,129.20/x
  3. Step 3: Cross multiply
    45,408,001.20x = 68,112,001.80 × 21,520,129.20
  4. Step 4: Simplify right side
    45,408,001.20x = 1,465,779,078,806,632.50
  5. Step 5: Solve for x
    x = 1,465,779,078,806,632.50/45,408,001.20
  6. Step 6: Final answer
    x = 32,280,193.80

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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.