Home / 21,294,410.10-31,941,615.15-12,784,355.70

Finding the Fourth Proportional to 21,294,410.10, 31,941,615.15 and 12,784,355.70

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Solution

The fourth proportional to 21,294,410.10, 31,941,615.15 and 12,784,355.70 is: 19,176,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,410.10 : 31,941,615.15 = 12,784,355.70 : x
  2. Step 2: Convert to fraction form
    21,294,410.10/31,941,615.15 = 12,784,355.70/x
  3. Step 3: Cross multiply
    21,294,410.10x = 31,941,615.15 × 12,784,355.70
  4. Step 4: Simplify right side
    21,294,410.10x = 408,352,969,710,108.81
  5. Step 5: Solve for x
    x = 408,352,969,710,108.81/21,294,410.10
  6. Step 6: Final answer
    x = 19,176,533.55

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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.