Home / 12,643,372.72-17,447,897.60-6,842,152.96

Finding the Fourth Proportional to 12,643,372.72, 17,447,897.60 and 6,842,152.96

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Solution

The fourth proportional to 12,643,372.72, 17,447,897.60 and 6,842,152.96 is: 9,442,194.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643,372.72 : 17,447,897.60 = 6,842,152.96 : x
  2. Step 2: Convert to fraction form
    12,643,372.72/17,447,897.60 = 6,842,152.96/x
  3. Step 3: Cross multiply
    12,643,372.72x = 17,447,897.60 × 6,842,152.96
  4. Step 4: Simplify right side
    12,643,372.72x = 119,381,184,209,616.91
  5. Step 5: Solve for x
    x = 119,381,184,209,616.91/12,643,372.72
  6. Step 6: Final answer
    x = 9,442,194.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.