Home / 421,980,488.46-632,632,701.67-200,540,685.94

Finding the Fourth Proportional to 421,980,488.46, 632,632,701.67 and 200,540,685.94

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Solution

The fourth proportional to 421,980,488.46, 632,632,701.67 and 200,540,685.94 is: 300,650,384.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,980,488.46 : 632,632,701.67 = 200,540,685.94 : x
  2. Step 2: Convert to fraction form
    421,980,488.46/632,632,701.67 = 200,540,685.94/x
  3. Step 3: Cross multiply
    421,980,488.46x = 632,632,701.67 × 200,540,685.94
  4. Step 4: Simplify right side
    421,980,488.46x = 126,868,595,938,894,256
  5. Step 5: Solve for x
    x = 126,868,595,938,894,256/421,980,488.46
  6. Step 6: Final answer
    x = 300,650,384.10

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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.