Home / 21,911,968.10-32,804,966.55-13,408,912.10

Finding the Fourth Proportional to 21,911,968.10, 32,804,966.55 and 13,408,912.10

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Solution

The fourth proportional to 21,911,968.10, 32,804,966.55 and 13,408,912.10 is: 20,074,824.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,911,968.10 : 32,804,966.55 = 13,408,912.10 : x
  2. Step 2: Convert to fraction form
    21,911,968.10/32,804,966.55 = 13,408,912.10/x
  3. Step 3: Cross multiply
    21,911,968.10x = 32,804,966.55 × 13,408,912.10
  4. Step 4: Simplify right side
    21,911,968.10x = 439,878,912,912,390.25
  5. Step 5: Solve for x
    x = 439,878,912,912,390.25/21,911,968.10
  6. Step 6: Final answer
    x = 20,074,824.45

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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.