Home / 12,921,510.98-19,385,281.56-4,284,979.64

Finding the Fourth Proportional to 12,921,510.98, 19,385,281.56 and 4,284,979.64

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Solution

The fourth proportional to 12,921,510.98, 19,385,281.56 and 4,284,979.64 is: 6,428,469.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,510.98 : 19,385,281.56 = 4,284,979.64 : x
  2. Step 2: Convert to fraction form
    12,921,510.98/19,385,281.56 = 4,284,979.64/x
  3. Step 3: Cross multiply
    12,921,510.98x = 19,385,281.56 × 4,284,979.64
  4. Step 4: Simplify right side
    12,921,510.98x = 83,065,536,800,267.42
  5. Step 5: Solve for x
    x = 83,065,536,800,267.42/12,921,510.98
  6. Step 6: Final answer
    x = 6,428,469.31

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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.