Home / 12,106,059.71-16,712,326.81-8,387,710.35

Finding the Fourth Proportional to 12,106,059.71, 16,712,326.81 and 8,387,710.35

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Solution

The fourth proportional to 12,106,059.71, 16,712,326.81 and 8,387,710.35 is: 11,579,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106,059.71 : 16,712,326.81 = 8,387,710.35 : x
  2. Step 2: Convert to fraction form
    12,106,059.71/16,712,326.81 = 8,387,710.35/x
  3. Step 3: Cross multiply
    12,106,059.71x = 16,712,326.81 × 8,387,710.35
  4. Step 4: Simplify right side
    12,106,059.71x = 140,178,156,473,178.98
  5. Step 5: Solve for x
    x = 140,178,156,473,178.98/12,106,059.71
  6. Step 6: Final answer
    x = 11,579,172.74

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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.