Home / 1,268,272,145.70-1,902,408,218.55-724,076,561.70

Finding the Fourth Proportional to 1,268,272,145.70, 1,902,408,218.55 and 724,076,561.70

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Solution

The fourth proportional to 1,268,272,145.70, 1,902,408,218.55 and 724,076,561.70 is: 1,086,114,842.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,272,145.70 : 1,902,408,218.55 = 724,076,561.70 : x
  2. Step 2: Convert to fraction form
    1,268,272,145.70/1,902,408,218.55 = 724,076,561.70/x
  3. Step 3: Cross multiply
    1,268,272,145.70x = 1,902,408,218.55 × 724,076,561.70
  4. Step 4: Simplify right side
    1,268,272,145.70x = 1,377,489,201,837,506,304
  5. Step 5: Solve for x
    x = 1,377,489,201,837,506,304/1,268,272,145.70
  6. Step 6: Final answer
    x = 1,086,114,842.55

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Double scale
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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.