Home / 15,579,709-21,499,602.33-8,704,242.70

Finding the Fourth Proportional to 15,579,709, 21,499,602.33 and 8,704,242.70

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Solution

The fourth proportional to 15,579,709, 21,499,602.33 and 8,704,242.70 is: 12,011,633.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,579,709 : 21,499,602.33 = 8,704,242.70 : x
  2. Step 2: Convert to fraction form
    15,579,709/21,499,602.33 = 8,704,242.70/x
  3. Step 3: Cross multiply
    15,579,709x = 21,499,602.33 × 8,704,242.70
  4. Step 4: Simplify right side
    15,579,709x = 187,137,756,633,805.47
  5. Step 5: Solve for x
    x = 187,137,756,633,805.47/15,579,709
  6. Step 6: Final answer
    x = 12,011,633.63

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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.