Home / 312,920,999.70-469,381,499.55-82,925,582.10

Finding the Fourth Proportional to 312,920,999.70, 469,381,499.55 and 82,925,582.10

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Solution

The fourth proportional to 312,920,999.70, 469,381,499.55 and 82,925,582.10 is: 124,388,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,920,999.70 : 469,381,499.55 = 82,925,582.10 : x
  2. Step 2: Convert to fraction form
    312,920,999.70/469,381,499.55 = 82,925,582.10/x
  3. Step 3: Cross multiply
    312,920,999.70x = 469,381,499.55 × 82,925,582.10
  4. Step 4: Simplify right side
    312,920,999.70x = 38,923,734,077,154,640
  5. Step 5: Solve for x
    x = 38,923,734,077,154,640/312,920,999.70
  6. Step 6: Final answer
    x = 124,388,373.15

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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.