Home / 12,383,143.40-18,573,840.30-4,294,159.40

Finding the Fourth Proportional to 12,383,143.40, 18,573,840.30 and 4,294,159.40

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Solution

The fourth proportional to 12,383,143.40, 18,573,840.30 and 4,294,159.40 is: 6,440,935.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383,143.40 : 18,573,840.30 = 4,294,159.40 : x
  2. Step 2: Convert to fraction form
    12,383,143.40/18,573,840.30 = 4,294,159.40/x
  3. Step 3: Cross multiply
    12,383,143.40x = 18,573,840.30 × 4,294,159.40
  4. Step 4: Simplify right side
    12,383,143.40x = 79,759,030,918,343.83
  5. Step 5: Solve for x
    x = 79,759,030,918,343.83/12,383,143.40
  6. Step 6: Final answer
    x = 6,440,935.74

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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.