Home / 10,603,510.20-15,909,930.90-4,920,809.40

Finding the Fourth Proportional to 10,603,510.20, 15,909,930.90 and 4,920,809.40

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Solution

The fourth proportional to 10,603,510.20, 15,909,930.90 and 4,920,809.40 is: 7,383,379.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603,510.20 : 15,909,930.90 = 4,920,809.40 : x
  2. Step 2: Convert to fraction form
    10,603,510.20/15,909,930.90 = 4,920,809.40/x
  3. Step 3: Cross multiply
    10,603,510.20x = 15,909,930.90 × 4,920,809.40
  4. Step 4: Simplify right side
    10,603,510.20x = 78,289,737,526,070.47
  5. Step 5: Solve for x
    x = 78,289,737,526,070.47/10,603,510.20
  6. Step 6: Final answer
    x = 7,383,379.28

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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.