Home / 210,507,482.76-315,513,251.83-85,932,311.16

Finding the Fourth Proportional to 210,507,482.76, 315,513,251.83 and 85,932,311.16

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Solution

The fourth proportional to 210,507,482.76, 315,513,251.83 and 85,932,311.16 is: 128,797,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,507,482.76 : 315,513,251.83 = 85,932,311.16 : x
  2. Step 2: Convert to fraction form
    210,507,482.76/315,513,251.83 = 85,932,311.16/x
  3. Step 3: Cross multiply
    210,507,482.76x = 315,513,251.83 × 85,932,311.16
  4. Step 4: Simplify right side
    210,507,482.76x = 27,112,782,929,987,604
  5. Step 5: Solve for x
    x = 27,112,782,929,987,604/210,507,482.76
  6. Step 6: Final answer
    x = 128,797,240.72

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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.