Home / 21,735,968.31-30,021,943.55-15,846,275.25

Finding the Fourth Proportional to 21,735,968.31, 30,021,943.55 and 15,846,275.25

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Solution

The fourth proportional to 21,735,968.31, 30,021,943.55 and 15,846,275.25 is: 21,887,038.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,735,968.31 : 30,021,943.55 = 15,846,275.25 : x
  2. Step 2: Convert to fraction form
    21,735,968.31/30,021,943.55 = 15,846,275.25/x
  3. Step 3: Cross multiply
    21,735,968.31x = 30,021,943.55 × 15,846,275.25
  4. Step 4: Simplify right side
    21,735,968.31x = 475,735,980,954,030.81
  5. Step 5: Solve for x
    x = 475,735,980,954,030.81/21,735,968.31
  6. Step 6: Final answer
    x = 21,887,038.76

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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.