Home / 919,853,975.61-1,269,392,028.77-502,166,260.89

Finding the Fourth Proportional to 919,853,975.61, 1,269,392,028.77 and 502,166,260.89

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Solution

The fourth proportional to 919,853,975.61, 1,269,392,028.77 and 502,166,260.89 is: 692,985,914.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,853,975.61 : 1,269,392,028.77 = 502,166,260.89 : x
  2. Step 2: Convert to fraction form
    919,853,975.61/1,269,392,028.77 = 502,166,260.89/x
  3. Step 3: Cross multiply
    919,853,975.61x = 1,269,392,028.77 × 502,166,260.89
  4. Step 4: Simplify right side
    919,853,975.61x = 637,445,848,688,491,392
  5. Step 5: Solve for x
    x = 637,445,848,688,491,392/919,853,975.61
  6. Step 6: Final answer
    x = 692,985,914.71

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Double scale
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1.5x scale

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.