Home / 12,455,622.60-18,691,307.10-7,338,042.60

Finding the Fourth Proportional to 12,455,622.60, 18,691,307.10 and 7,338,042.60

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Solution

The fourth proportional to 12,455,622.60, 18,691,307.10 and 7,338,042.60 is: 11,011,702.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,622.60 : 18,691,307.10 = 7,338,042.60 : x
  2. Step 2: Convert to fraction form
    12,455,622.60/18,691,307.10 = 7,338,042.60/x
  3. Step 3: Cross multiply
    12,455,622.60x = 18,691,307.10 × 7,338,042.60
  4. Step 4: Simplify right side
    12,455,622.60x = 137,157,607,749,482.47
  5. Step 5: Solve for x
    x = 137,157,607,749,482.47/12,455,622.60
  6. Step 6: Final answer
    x = 11,011,702.28

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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.