Home / 919,853,975.86-1,269,392,029.11-502,166,261.14

Finding the Fourth Proportional to 919,853,975.86, 1,269,392,029.11 and 502,166,261.14

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Solution

The fourth proportional to 919,853,975.86, 1,269,392,029.11 and 502,166,261.14 is: 692,985,915.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,853,975.86 : 1,269,392,029.11 = 502,166,261.14 : x
  2. Step 2: Convert to fraction form
    919,853,975.86/1,269,392,029.11 = 502,166,261.14/x
  3. Step 3: Cross multiply
    919,853,975.86x = 1,269,392,029.11 × 502,166,261.14
  4. Step 4: Simplify right side
    919,853,975.86x = 637,445,849,179,086,720
  5. Step 5: Solve for x
    x = 637,445,849,179,086,720/919,853,975.86
  6. Step 6: Final answer
    x = 692,985,915.06

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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.