Home / 8,315,136.80-12,482,036.40-6,430,234.40

Finding the Fourth Proportional to 8,315,136.80, 12,482,036.40 and 6,430,234.40

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Solution

The fourth proportional to 8,315,136.80, 12,482,036.40 and 6,430,234.40 is: 9,652,567.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315,136.80 : 12,482,036.40 = 6,430,234.40 : x
  2. Step 2: Convert to fraction form
    8,315,136.80/12,482,036.40 = 6,430,234.40/x
  3. Step 3: Cross multiply
    8,315,136.80x = 12,482,036.40 × 6,430,234.40
  4. Step 4: Simplify right side
    8,315,136.80x = 80,262,419,841,332.17
  5. Step 5: Solve for x
    x = 80,262,419,841,332.17/8,315,136.80
  6. Step 6: Final answer
    x = 9,652,567.57

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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.