Home / 10,603,378.20-15,909,732.90-4,920,677.40

Finding the Fourth Proportional to 10,603,378.20, 15,909,732.90 and 4,920,677.40

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Solution

The fourth proportional to 10,603,378.20, 15,909,732.90 and 4,920,677.40 is: 7,383,181.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603,378.20 : 15,909,732.90 = 4,920,677.40 : x
  2. Step 2: Convert to fraction form
    10,603,378.20/15,909,732.90 = 4,920,677.40/x
  3. Step 3: Cross multiply
    10,603,378.20x = 15,909,732.90 × 4,920,677.40
  4. Step 4: Simplify right side
    10,603,378.20x = 78,286,663,121,066.47
  5. Step 5: Solve for x
    x = 78,286,663,121,066.47/10,603,378.20
  6. Step 6: Final answer
    x = 7,383,181.25

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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.