Home / 31,679,133.28-43,710,880.68-19,280,922.40

Finding the Fourth Proportional to 31,679,133.28, 43,710,880.68 and 19,280,922.40

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Solution

The fourth proportional to 31,679,133.28, 43,710,880.68 and 19,280,922.40 is: 26,603,824.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,679,133.28 : 43,710,880.68 = 19,280,922.40 : x
  2. Step 2: Convert to fraction form
    31,679,133.28/43,710,880.68 = 19,280,922.40/x
  3. Step 3: Cross multiply
    31,679,133.28x = 43,710,880.68 × 19,280,922.40
  4. Step 4: Simplify right side
    31,679,133.28x = 842,786,098,426,739.12
  5. Step 5: Solve for x
    x = 842,786,098,426,739.12/31,679,133.28
  6. Step 6: Final answer
    x = 26,603,824.38

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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.