Home / 1,288,590,070.19-1,932,532,340.96-355,689,902.97

Finding the Fourth Proportional to 1,288,590,070.19, 1,932,532,340.96 and 355,689,902.97

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Solution

The fourth proportional to 1,288,590,070.19, 1,932,532,340.96 and 355,689,902.97 is: 533,437,480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,590,070.19 : 1,932,532,340.96 = 355,689,902.97 : x
  2. Step 2: Convert to fraction form
    1,288,590,070.19/1,932,532,340.96 = 355,689,902.97/x
  3. Step 3: Cross multiply
    1,288,590,070.19x = 1,932,532,340.96 × 355,689,902.97
  4. Step 4: Simplify right side
    1,288,590,070.19x = 687,382,240,843,338,624
  5. Step 5: Solve for x
    x = 687,382,240,843,338,624/1,288,590,070.19
  6. Step 6: Final answer
    x = 533,437,480.82

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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.