Home / 919,853,976.36-1,269,392,029.80-502,166,261.64

Finding the Fourth Proportional to 919,853,976.36, 1,269,392,029.80 and 502,166,261.64

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Solution

The fourth proportional to 919,853,976.36, 1,269,392,029.80 and 502,166,261.64 is: 692,985,915.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,853,976.36 : 1,269,392,029.80 = 502,166,261.64 : x
  2. Step 2: Convert to fraction form
    919,853,976.36/1,269,392,029.80 = 502,166,261.64/x
  3. Step 3: Cross multiply
    919,853,976.36x = 1,269,392,029.80 × 502,166,261.64
  4. Step 4: Simplify right side
    919,853,976.36x = 637,445,850,160,277,376
  5. Step 5: Solve for x
    x = 637,445,850,160,277,376/919,853,976.36
  6. Step 6: Final answer
    x = 692,985,915.75

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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.