Home / 7,800,605.40-11,700,908.10-5,249,688.60

Finding the Fourth Proportional to 7,800,605.40, 11,700,908.10 and 5,249,688.60

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Solution

The fourth proportional to 7,800,605.40, 11,700,908.10 and 5,249,688.60 is: 7,874,532.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,800,605.40 : 11,700,908.10 = 5,249,688.60 : x
  2. Step 2: Convert to fraction form
    7,800,605.40/11,700,908.10 = 5,249,688.60/x
  3. Step 3: Cross multiply
    7,800,605.40x = 11,700,908.10 × 5,249,688.60
  4. Step 4: Simplify right side
    7,800,605.40x = 61,426,123,862,217.66
  5. Step 5: Solve for x
    x = 61,426,123,862,217.66/7,800,605.40
  6. Step 6: Final answer
    x = 7,874,532.90

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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.