Home / 8,461,068.20-12,698,859.90-3,415,999.40

Finding the Fourth Proportional to 8,461,068.20, 12,698,859.90 and 3,415,999.40

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Solution

The fourth proportional to 8,461,068.20, 12,698,859.90 and 3,415,999.40 is: 5,126,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,461,068.20 : 12,698,859.90 = 3,415,999.40 : x
  2. Step 2: Convert to fraction form
    8,461,068.20/12,698,859.90 = 3,415,999.40/x
  3. Step 3: Cross multiply
    8,461,068.20x = 12,698,859.90 × 3,415,999.40
  4. Step 4: Simplify right side
    8,461,068.20x = 43,379,297,799,084.06
  5. Step 5: Solve for x
    x = 43,379,297,799,084.06/8,461,068.20
  6. Step 6: Final answer
    x = 5,126,929.22

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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.