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Finding the Fourth Proportional to 7,798,511.80, 11,697,767.70 and 5,531,030.20

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Solution

The fourth proportional to 7,798,511.80, 11,697,767.70 and 5,531,030.20 is: 8,296,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798,511.80 : 11,697,767.70 = 5,531,030.20 : x
  2. Step 2: Convert to fraction form
    7,798,511.80/11,697,767.70 = 5,531,030.20/x
  3. Step 3: Cross multiply
    7,798,511.80x = 11,697,767.70 × 5,531,030.20
  4. Step 4: Simplify right side
    7,798,511.80x = 64,700,706,421,284.54
  5. Step 5: Solve for x
    x = 64,700,706,421,284.54/7,798,511.80
  6. Step 6: Final answer
    x = 8,296,545.30

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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.