Home / 210,546,053.70-315,819,080.55-74,186,117.70

Finding the Fourth Proportional to 210,546,053.70, 315,819,080.55 and 74,186,117.70

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Solution

The fourth proportional to 210,546,053.70, 315,819,080.55 and 74,186,117.70 is: 111,279,176.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,546,053.70 : 315,819,080.55 = 74,186,117.70 : x
  2. Step 2: Convert to fraction form
    210,546,053.70/315,819,080.55 = 74,186,117.70/x
  3. Step 3: Cross multiply
    210,546,053.70x = 315,819,080.55 × 74,186,117.70
  4. Step 4: Simplify right side
    210,546,053.70x = 23,429,391,481,588,084
  5. Step 5: Solve for x
    x = 23,429,391,481,588,084/210,546,053.70
  6. Step 6: Final answer
    x = 111,279,176.55

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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.