Home / 1,581,172,953.33-2,180,746,370.39-1,390,025,269.34

Finding the Fourth Proportional to 1,581,172,953.33, 2,180,746,370.39 and 1,390,025,269.34

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Solution

The fourth proportional to 1,581,172,953.33, 2,180,746,370.39 and 1,390,025,269.34 is: 1,917,116,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,172,953.33 : 2,180,746,370.39 = 1,390,025,269.34 : x
  2. Step 2: Convert to fraction form
    1,581,172,953.33/2,180,746,370.39 = 1,390,025,269.34/x
  3. Step 3: Cross multiply
    1,581,172,953.33x = 2,180,746,370.39 × 1,390,025,269.34
  4. Step 4: Simplify right side
    1,581,172,953.33x = 3,031,292,560,845,733,888
  5. Step 5: Solve for x
    x = 3,031,292,560,845,733,888/1,581,172,953.33
  6. Step 6: Final answer
    x = 1,917,116,375.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.