Home / 8,385,938.40-12,578,907.60-6,370,399.20

Finding the Fourth Proportional to 8,385,938.40, 12,578,907.60 and 6,370,399.20

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Solution

The fourth proportional to 8,385,938.40, 12,578,907.60 and 6,370,399.20 is: 9,555,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,385,938.40 : 12,578,907.60 = 6,370,399.20 : x
  2. Step 2: Convert to fraction form
    8,385,938.40/12,578,907.60 = 6,370,399.20/x
  3. Step 3: Cross multiply
    8,385,938.40x = 12,578,907.60 × 6,370,399.20
  4. Step 4: Simplify right side
    8,385,938.40x = 80,132,662,911,913.92
  5. Step 5: Solve for x
    x = 80,132,662,911,913.92/8,385,938.40
  6. Step 6: Final answer
    x = 9,555,598.80

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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.