Home / 8,139,011.76-12,209,636.81-3,021,006.78

Finding the Fourth Proportional to 8,139,011.76, 12,209,636.81 and 3,021,006.78

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Solution

The fourth proportional to 8,139,011.76, 12,209,636.81 and 3,021,006.78 is: 4,531,925.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139,011.76 : 12,209,636.81 = 3,021,006.78 : x
  2. Step 2: Convert to fraction form
    8,139,011.76/12,209,636.81 = 3,021,006.78/x
  3. Step 3: Cross multiply
    8,139,011.76x = 12,209,636.81 × 3,021,006.78
  4. Step 4: Simplify right side
    8,139,011.76x = 36,885,395,569,242.53
  5. Step 5: Solve for x
    x = 36,885,395,569,242.53/8,139,011.76
  6. Step 6: Final answer
    x = 4,531,925.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.