Home / 18,806,216,916.86-28,200,608,299.05-7,012,168,678.70

Finding the Fourth Proportional to 18,806,216,916.86, 28,200,608,299.05 and 7,012,168,678.70

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Solution

The fourth proportional to 18,806,216,916.86, 28,200,608,299.05 and 7,012,168,678.70 is: 10,515,002,730.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806,216,916.86 : 28,200,608,299.05 = 7,012,168,678.70 : x
  2. Step 2: Convert to fraction form
    18,806,216,916.86/28,200,608,299.05 = 7,012,168,678.70/x
  3. Step 3: Cross multiply
    18,806,216,916.86x = 28,200,608,299.05 × 7,012,168,678.70
  4. Step 4: Simplify right side
    18,806,216,916.86x = 197,747,422,234,885,685,248
  5. Step 5: Solve for x
    x = 197,747,422,234,885,685,248/18,806,216,916.86
  6. Step 6: Final answer
    x = 10,515,002,730.70

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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.