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Finding the Fourth Proportional to 6,447,773.69, 9,671,310.54 and 1,959,699.77

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Solution

The fourth proportional to 6,447,773.69, 9,671,310.54 and 1,959,699.77 is: 2,939,443.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,447,773.69 : 9,671,310.54 = 1,959,699.77 : x
  2. Step 2: Convert to fraction form
    6,447,773.69/9,671,310.54 = 1,959,699.77/x
  3. Step 3: Cross multiply
    6,447,773.69x = 9,671,310.54 × 1,959,699.77
  4. Step 4: Simplify right side
    6,447,773.69x = 18,952,865,031,038.08
  5. Step 5: Solve for x
    x = 18,952,865,031,038.08/6,447,773.69
  6. Step 6: Final answer
    x = 2,939,443.28

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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.