Home / 210,400,315.20-315,600,472.80-145,499,952.96

Finding the Fourth Proportional to 210,400,315.20, 315,600,472.80 and 145,499,952.96

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Solution

The fourth proportional to 210,400,315.20, 315,600,472.80 and 145,499,952.96 is: 218,249,929.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,400,315.20 : 315,600,472.80 = 145,499,952.96 : x
  2. Step 2: Convert to fraction form
    210,400,315.20/315,600,472.80 = 145,499,952.96/x
  3. Step 3: Cross multiply
    210,400,315.20x = 315,600,472.80 × 145,499,952.96
  4. Step 4: Simplify right side
    210,400,315.20x = 45,919,853,946,553,760
  5. Step 5: Solve for x
    x = 45,919,853,946,553,760/210,400,315.20
  6. Step 6: Final answer
    x = 218,249,929.44

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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.