Home / 1,259,721,131.20-1,889,581,696.80-532,709,843.20

Finding the Fourth Proportional to 1,259,721,131.20, 1,889,581,696.80 and 532,709,843.20

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Solution

The fourth proportional to 1,259,721,131.20, 1,889,581,696.80 and 532,709,843.20 is: 799,064,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,721,131.20 : 1,889,581,696.80 = 532,709,843.20 : x
  2. Step 2: Convert to fraction form
    1,259,721,131.20/1,889,581,696.80 = 532,709,843.20/x
  3. Step 3: Cross multiply
    1,259,721,131.20x = 1,889,581,696.80 × 532,709,843.20
  4. Step 4: Simplify right side
    1,259,721,131.20x = 1,006,598,769,415,917,952
  5. Step 5: Solve for x
    x = 1,006,598,769,415,917,952/1,259,721,131.20
  6. Step 6: Final answer
    x = 799,064,764.80

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Double scale
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1.5x scale

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.