Home / 1,872,807,619.70-2,808,361,123.95-707,888,947.70

Finding the Fourth Proportional to 1,872,807,619.70, 2,808,361,123.95 and 707,888,947.70

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Solution

The fourth proportional to 1,872,807,619.70, 2,808,361,123.95 and 707,888,947.70 is: 1,061,512,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872,807,619.70 : 2,808,361,123.95 = 707,888,947.70 : x
  2. Step 2: Convert to fraction form
    1,872,807,619.70/2,808,361,123.95 = 707,888,947.70/x
  3. Step 3: Cross multiply
    1,872,807,619.70x = 2,808,361,123.95 × 707,888,947.70
  4. Step 4: Simplify right side
    1,872,807,619.70x = 1,988,007,800,794,554,880
  5. Step 5: Solve for x
    x = 1,988,007,800,794,554,880/1,872,807,619.70
  6. Step 6: Final answer
    x = 1,061,512,020.71

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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.