Home / 13,708,320.70-18,919,566.83-8,748,901.81

Finding the Fourth Proportional to 13,708,320.70, 18,919,566.83 and 8,748,901.81

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Solution

The fourth proportional to 13,708,320.70, 18,919,566.83 and 8,748,901.81 is: 12,074,814.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708,320.70 : 18,919,566.83 = 8,748,901.81 : x
  2. Step 2: Convert to fraction form
    13,708,320.70/18,919,566.83 = 8,748,901.81/x
  3. Step 3: Cross multiply
    13,708,320.70x = 18,919,566.83 × 8,748,901.81
  4. Step 4: Simplify right side
    13,708,320.70x = 165,525,432,483,402.97
  5. Step 5: Solve for x
    x = 165,525,432,483,402.97/13,708,320.70
  6. Step 6: Final answer
    x = 12,074,814.71

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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.