Home / 21,216,528.96-31,966,567.28-19,169,568.95

Finding the Fourth Proportional to 21,216,528.96, 31,966,567.28 and 19,169,568.95

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Solution

The fourth proportional to 21,216,528.96, 31,966,567.28 and 19,169,568.95 is: 28,882,448.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216,528.96 : 31,966,567.28 = 19,169,568.95 : x
  2. Step 2: Convert to fraction form
    21,216,528.96/31,966,567.28 = 19,169,568.95/x
  3. Step 3: Cross multiply
    21,216,528.96x = 31,966,567.28 × 19,169,568.95
  4. Step 4: Simplify right side
    21,216,528.96x = 612,785,315,313,093.25
  5. Step 5: Solve for x
    x = 612,785,315,313,093.25/21,216,528.96
  6. Step 6: Final answer
    x = 28,882,448.98

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.