Home / 12,905,018.76-17,798,978.64-8,013,137.16

Finding the Fourth Proportional to 12,905,018.76, 17,798,978.64 and 8,013,137.16

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Solution

The fourth proportional to 12,905,018.76, 17,798,978.64 and 8,013,137.16 is: 11,051,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905,018.76 : 17,798,978.64 = 8,013,137.16 : x
  2. Step 2: Convert to fraction form
    12,905,018.76/17,798,978.64 = 8,013,137.16/x
  3. Step 3: Cross multiply
    12,905,018.76x = 17,798,978.64 × 8,013,137.16
  4. Step 4: Simplify right side
    12,905,018.76x = 142,625,657,150,230.28
  5. Step 5: Solve for x
    x = 142,625,657,150,230.28/12,905,018.76
  6. Step 6: Final answer
    x = 11,051,952.72

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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.