Home / 28,404,121.41-42,588,429.75-12,000,972.60

Finding the Fourth Proportional to 28,404,121.41, 42,588,429.75 and 12,000,972.60

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Solution

The fourth proportional to 28,404,121.41, 42,588,429.75 and 12,000,972.60 is: 17,993,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,404,121.41 : 42,588,429.75 = 12,000,972.60 : x
  2. Step 2: Convert to fraction form
    28,404,121.41/42,588,429.75 = 12,000,972.60/x
  3. Step 3: Cross multiply
    28,404,121.41x = 42,588,429.75 × 12,000,972.60
  4. Step 4: Simplify right side
    28,404,121.41x = 511,102,578,506,774.81
  5. Step 5: Solve for x
    x = 511,102,578,506,774.81/28,404,121.41
  6. Step 6: Final answer
    x = 17,993,958.38

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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.