Home / 1,872,807,620.70-2,808,361,125.45-707,888,948.70

Finding the Fourth Proportional to 1,872,807,620.70, 2,808,361,125.45 and 707,888,948.70

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Solution

The fourth proportional to 1,872,807,620.70, 2,808,361,125.45 and 707,888,948.70 is: 1,061,512,022.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872,807,620.70 : 2,808,361,125.45 = 707,888,948.70 : x
  2. Step 2: Convert to fraction form
    1,872,807,620.70/2,808,361,125.45 = 707,888,948.70/x
  3. Step 3: Cross multiply
    1,872,807,620.70x = 2,808,361,125.45 × 707,888,948.70
  4. Step 4: Simplify right side
    1,872,807,620.70x = 1,988,007,804,664,749,312
  5. Step 5: Solve for x
    x = 1,988,007,804,664,749,312/1,872,807,620.70
  6. Step 6: Final answer
    x = 1,061,512,022.21

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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.