Home / 8,321,955.40-12,461,937.90-6,642,339.40

Finding the Fourth Proportional to 8,321,955.40, 12,461,937.90 and 6,642,339.40

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Solution

The fourth proportional to 8,321,955.40, 12,461,937.90 and 6,642,339.40 is: 9,946,751.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,321,955.40 : 12,461,937.90 = 6,642,339.40 : x
  2. Step 2: Convert to fraction form
    8,321,955.40/12,461,937.90 = 6,642,339.40/x
  3. Step 3: Cross multiply
    8,321,955.40x = 12,461,937.90 × 6,642,339.40
  4. Step 4: Simplify right side
    8,321,955.40x = 82,776,421,113,523.27
  5. Step 5: Solve for x
    x = 82,776,421,113,523.27/8,321,955.40
  6. Step 6: Final answer
    x = 9,946,751.35

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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.