Home / 12,869,421.40-19,306,724.10-3,771,501.40

Finding the Fourth Proportional to 12,869,421.40, 19,306,724.10 and 3,771,501.40

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Solution

The fourth proportional to 12,869,421.40, 19,306,724.10 and 3,771,501.40 is: 5,658,011.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869,421.40 : 19,306,724.10 = 3,771,501.40 : x
  2. Step 2: Convert to fraction form
    12,869,421.40/19,306,724.10 = 3,771,501.40/x
  3. Step 3: Cross multiply
    12,869,421.40x = 19,306,724.10 × 3,771,501.40
  4. Step 4: Simplify right side
    12,869,421.40x = 72,815,336,972,563.75
  5. Step 5: Solve for x
    x = 72,815,336,972,563.75/12,869,421.40
  6. Step 6: Final answer
    x = 5,658,011.71

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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.