Home / 21,800,768.40-32,772,011.40-15,454,969.20

Finding the Fourth Proportional to 21,800,768.40, 32,772,011.40 and 15,454,969.20

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Solution

The fourth proportional to 21,800,768.40, 32,772,011.40 and 15,454,969.20 is: 23,232,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800,768.40 : 32,772,011.40 = 15,454,969.20 : x
  2. Step 2: Convert to fraction form
    21,800,768.40/32,772,011.40 = 15,454,969.20/x
  3. Step 3: Cross multiply
    21,800,768.40x = 32,772,011.40 × 15,454,969.20
  4. Step 4: Simplify right side
    21,800,768.40x = 506,490,426,809,048.81
  5. Step 5: Solve for x
    x = 506,490,426,809,048.81/21,800,768.40
  6. Step 6: Final answer
    x = 23,232,686.92

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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.