Home / 12,495,878.80-18,743,818.20-7,457,030.80

Finding the Fourth Proportional to 12,495,878.80, 18,743,818.20 and 7,457,030.80

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Solution

The fourth proportional to 12,495,878.80, 18,743,818.20 and 7,457,030.80 is: 11,185,546.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495,878.80 : 18,743,818.20 = 7,457,030.80 : x
  2. Step 2: Convert to fraction form
    12,495,878.80/18,743,818.20 = 7,457,030.80/x
  3. Step 3: Cross multiply
    12,495,878.80x = 18,743,818.20 × 7,457,030.80
  4. Step 4: Simplify right side
    12,495,878.80x = 139,773,229,627,000.55
  5. Step 5: Solve for x
    x = 139,773,229,627,000.55/12,495,878.80
  6. Step 6: Final answer
    x = 11,185,546.20

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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.