Home / 8,503,295.40-12,786,435.90-7,117,612.20

Finding the Fourth Proportional to 8,503,295.40, 12,786,435.90 and 7,117,612.20

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Solution

The fourth proportional to 8,503,295.40, 12,786,435.90 and 7,117,612.20 is: 10,702,779.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503,295.40 : 12,786,435.90 = 7,117,612.20 : x
  2. Step 2: Convert to fraction form
    8,503,295.40/12,786,435.90 = 7,117,612.20/x
  3. Step 3: Cross multiply
    8,503,295.40x = 12,786,435.90 × 7,117,612.20
  4. Step 4: Simplify right side
    8,503,295.40x = 91,008,892,156,357.98
  5. Step 5: Solve for x
    x = 91,008,892,156,357.98/8,503,295.40
  6. Step 6: Final answer
    x = 10,702,779.08

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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.