Home / 418,903,597,091.72-628,355,403,940.05-100,549,795,815.20

Finding the Fourth Proportional to 418,903,597,091.72, 628,355,403,940.05 and 100,549,795,815.20

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Solution

The fourth proportional to 418,903,597,091.72, 628,355,403,940.05 and 100,549,795,815.20 is: 150,824,695,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,903,597,091.72 : 628,355,403,940.05 = 100,549,795,815.20 : x
  2. Step 2: Convert to fraction form
    418,903,597,091.72/628,355,403,940.05 = 100,549,795,815.20/x
  3. Step 3: Cross multiply
    418,903,597,091.72x = 628,355,403,940.05 × 100,549,795,815.20
  4. Step 4: Simplify right side
    418,903,597,091.72x = 63,181,007,565,549,549,387,776
  5. Step 5: Solve for x
    x = 63,181,007,565,549,549,387,776/418,903,597,091.72
  6. Step 6: Final answer
    x = 150,824,695,715.65

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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.