Home / 5,237,719.92-7,856,911.95-1,643,628.72

Finding the Fourth Proportional to 5,237,719.92, 7,856,911.95 and 1,643,628.72

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Solution

The fourth proportional to 5,237,719.92, 7,856,911.95 and 1,643,628.72 is: 2,465,547.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237,719.92 : 7,856,911.95 = 1,643,628.72 : x
  2. Step 2: Convert to fraction form
    5,237,719.92/7,856,911.95 = 1,643,628.72/x
  3. Step 3: Cross multiply
    5,237,719.92x = 7,856,911.95 × 1,643,628.72
  4. Step 4: Simplify right side
    5,237,719.92x = 12,913,846,123,313.06
  5. Step 5: Solve for x
    x = 12,913,846,123,313.06/5,237,719.92
  6. Step 6: Final answer
    x = 2,465,547.29

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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.