Home / 1,125,780,452.70-1,688,882,814.80-426,482,041.38

Finding the Fourth Proportional to 1,125,780,452.70, 1,688,882,814.80 and 426,482,041.38

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Solution

The fourth proportional to 1,125,780,452.70, 1,688,882,814.80 and 426,482,041.38 is: 639,803,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,780,452.70 : 1,688,882,814.80 = 426,482,041.38 : x
  2. Step 2: Convert to fraction form
    1,125,780,452.70/1,688,882,814.80 = 426,482,041.38/x
  3. Step 3: Cross multiply
    1,125,780,452.70x = 1,688,882,814.80 × 426,482,041.38
  4. Step 4: Simplify right side
    1,125,780,452.70x = 720,278,190,507,504,512
  5. Step 5: Solve for x
    x = 720,278,190,507,504,512/1,125,780,452.70
  6. Step 6: Final answer
    x = 639,803,425.95

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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.