Home / 14,166,411.36-21,139,129.64-12,639,598.56

Finding the Fourth Proportional to 14,166,411.36, 21,139,129.64 and 12,639,598.56

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Solution

The fourth proportional to 14,166,411.36, 21,139,129.64 and 12,639,598.56 is: 18,860,818.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,166,411.36 : 21,139,129.64 = 12,639,598.56 : x
  2. Step 2: Convert to fraction form
    14,166,411.36/21,139,129.64 = 12,639,598.56/x
  3. Step 3: Cross multiply
    14,166,411.36x = 21,139,129.64 × 12,639,598.56
  4. Step 4: Simplify right side
    14,166,411.36x = 267,190,112,557,397.34
  5. Step 5: Solve for x
    x = 267,190,112,557,397.34/14,166,411.36
  6. Step 6: Final answer
    x = 18,860,818.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.