Home / 172,848,280,117.80-259,417,538,999.10-78,666,164,380.20

Finding the Fourth Proportional to 172,848,280,117.80, 259,417,538,999.10 and 78,666,164,380.20

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Solution

The fourth proportional to 172,848,280,117.80, 259,417,538,999.10 and 78,666,164,380.20 is: 118,065,292,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,848,280,117.80 : 259,417,538,999.10 = 78,666,164,380.20 : x
  2. Step 2: Convert to fraction form
    172,848,280,117.80/259,417,538,999.10 = 78,666,164,380.20/x
  3. Step 3: Cross multiply
    172,848,280,117.80x = 259,417,538,999.10 × 78,666,164,380.20
  4. Step 4: Simplify right side
    172,848,280,117.80x = 20,407,382,766,010,144,653,312
  5. Step 5: Solve for x
    x = 20,407,382,766,010,144,653,312/172,848,280,117.80
  6. Step 6: Final answer
    x = 118,065,292,591.30

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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.