Home / 290,829,649.83-401,330,902.26-158,662,783.05

Finding the Fourth Proportional to 290,829,649.83, 401,330,902.26 and 158,662,783.05

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Solution

The fourth proportional to 290,829,649.83, 401,330,902.26 and 158,662,783.05 is: 218,946,994.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,829,649.83 : 401,330,902.26 = 158,662,783.05 : x
  2. Step 2: Convert to fraction form
    290,829,649.83/401,330,902.26 = 158,662,783.05/x
  3. Step 3: Cross multiply
    290,829,649.83x = 401,330,902.26 × 158,662,783.05
  4. Step 4: Simplify right side
    290,829,649.83x = 63,676,277,876,539,136
  5. Step 5: Solve for x
    x = 63,676,277,876,539,136/290,829,649.83
  6. Step 6: Final answer
    x = 218,946,994.96

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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.