Home / 1,180,608,286.43-1,629,240,053.76-644,767,287.05

Finding the Fourth Proportional to 1,180,608,286.43, 1,629,240,053.76 and 644,767,287.05

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Solution

The fourth proportional to 1,180,608,286.43, 1,629,240,053.76 and 644,767,287.05 is: 889,779,193.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,608,286.43 : 1,629,240,053.76 = 644,767,287.05 : x
  2. Step 2: Convert to fraction form
    1,180,608,286.43/1,629,240,053.76 = 644,767,287.05/x
  3. Step 3: Cross multiply
    1,180,608,286.43x = 1,629,240,053.76 × 644,767,287.05
  4. Step 4: Simplify right side
    1,180,608,286.43x = 1,050,480,689,412,850,688
  5. Step 5: Solve for x
    x = 1,050,480,689,412,850,688/1,180,608,286.43
  6. Step 6: Final answer
    x = 889,779,193.90

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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.