Home / 39,882,420.96-55,037,687.65-21,547,706.46

Finding the Fourth Proportional to 39,882,420.96, 55,037,687.65 and 21,547,706.46

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Solution

The fourth proportional to 39,882,420.96, 55,037,687.65 and 21,547,706.46 is: 29,735,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,882,420.96 : 55,037,687.65 = 21,547,706.46 : x
  2. Step 2: Convert to fraction form
    39,882,420.96/55,037,687.65 = 21,547,706.46/x
  3. Step 3: Cross multiply
    39,882,420.96x = 55,037,687.65 × 21,547,706.46
  4. Step 4: Simplify right side
    39,882,420.96x = 1,185,935,937,719,367.25
  5. Step 5: Solve for x
    x = 1,185,935,937,719,367.25/39,882,420.96
  6. Step 6: Final answer
    x = 29,735,806.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.