Home / 727,914,489.60-1,091,871,734.40-319,767,801.60

Finding the Fourth Proportional to 727,914,489.60, 1,091,871,734.40 and 319,767,801.60

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Solution

The fourth proportional to 727,914,489.60, 1,091,871,734.40 and 319,767,801.60 is: 479,651,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,914,489.60 : 1,091,871,734.40 = 319,767,801.60 : x
  2. Step 2: Convert to fraction form
    727,914,489.60/1,091,871,734.40 = 319,767,801.60/x
  3. Step 3: Cross multiply
    727,914,489.60x = 1,091,871,734.40 × 319,767,801.60
  4. Step 4: Simplify right side
    727,914,489.60x = 349,145,424,138,267,136
  5. Step 5: Solve for x
    x = 349,145,424,138,267,136/727,914,489.60
  6. Step 6: Final answer
    x = 479,651,702.40

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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.