Home / 12,455,598.60-18,691,271.10-7,338,018.60

Finding the Fourth Proportional to 12,455,598.60, 18,691,271.10 and 7,338,018.60

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Solution

The fourth proportional to 12,455,598.60, 18,691,271.10 and 7,338,018.60 is: 11,011,666.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455,598.60 : 18,691,271.10 = 7,338,018.60 : x
  2. Step 2: Convert to fraction form
    12,455,598.60/18,691,271.10 = 7,338,018.60/x
  3. Step 3: Cross multiply
    12,455,598.60x = 18,691,271.10 × 7,338,018.60
  4. Step 4: Simplify right side
    12,455,598.60x = 137,156,894,989,442.47
  5. Step 5: Solve for x
    x = 137,156,894,989,442.47/12,455,598.60
  6. Step 6: Final answer
    x = 11,011,666.27

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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.