Home / 1,212,372,645.70-1,818,558,968.55-523,625,109.70

Finding the Fourth Proportional to 1,212,372,645.70, 1,818,558,968.55 and 523,625,109.70

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Solution

The fourth proportional to 1,212,372,645.70, 1,818,558,968.55 and 523,625,109.70 is: 785,437,664.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,372,645.70 : 1,818,558,968.55 = 523,625,109.70 : x
  2. Step 2: Convert to fraction form
    1,212,372,645.70/1,818,558,968.55 = 523,625,109.70/x
  3. Step 3: Cross multiply
    1,212,372,645.70x = 1,818,558,968.55 × 523,625,109.70
  4. Step 4: Simplify right side
    1,212,372,645.70x = 952,243,139,402,912,512
  5. Step 5: Solve for x
    x = 952,243,139,402,912,512/1,212,372,645.70
  6. Step 6: Final answer
    x = 785,437,664.55

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Double scale
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Similar ratio
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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.