Home / 210,282,004.20-315,423,006.30-89,097,709.80

Finding the Fourth Proportional to 210,282,004.20, 315,423,006.30 and 89,097,709.80

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Solution

The fourth proportional to 210,282,004.20, 315,423,006.30 and 89,097,709.80 is: 133,646,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,282,004.20 : 315,423,006.30 = 89,097,709.80 : x
  2. Step 2: Convert to fraction form
    210,282,004.20/315,423,006.30 = 89,097,709.80/x
  3. Step 3: Cross multiply
    210,282,004.20x = 315,423,006.30 × 89,097,709.80
  4. Step 4: Simplify right side
    210,282,004.20x = 28,103,467,479,560,972
  5. Step 5: Solve for x
    x = 28,103,467,479,560,972/210,282,004.20
  6. Step 6: Final answer
    x = 133,646,564.70

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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.