Home / 51,758,784,013.80-77,638,176,020.70-51,242,805,978.60

Finding the Fourth Proportional to 51,758,784,013.80, 77,638,176,020.70 and 51,242,805,978.60

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Solution

The fourth proportional to 51,758,784,013.80, 77,638,176,020.70 and 51,242,805,978.60 is: 76,864,208,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,758,784,013.80 : 77,638,176,020.70 = 51,242,805,978.60 : x
  2. Step 2: Convert to fraction form
    51,758,784,013.80/77,638,176,020.70 = 51,242,805,978.60/x
  3. Step 3: Cross multiply
    51,758,784,013.80x = 77,638,176,020.70 × 51,242,805,978.60
  4. Step 4: Simplify right side
    51,758,784,013.80x = 3,978,397,990,361,124,831,232
  5. Step 5: Solve for x
    x = 3,978,397,990,361,124,831,232/51,758,784,013.80
  6. Step 6: Final answer
    x = 76,864,208,967.90

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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.