Home / 121,291,715.32-181,885,784.82-70,208,994.04

Finding the Fourth Proportional to 121,291,715.32, 181,885,784.82 and 70,208,994.04

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Solution

The fourth proportional to 121,291,715.32, 181,885,784.82 and 70,208,994.04 is: 105,283,513.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,291,715.32 : 181,885,784.82 = 70,208,994.04 : x
  2. Step 2: Convert to fraction form
    121,291,715.32/181,885,784.82 = 70,208,994.04/x
  3. Step 3: Cross multiply
    121,291,715.32x = 181,885,784.82 × 70,208,994.04
  4. Step 4: Simplify right side
    121,291,715.32x = 12,770,017,982,388,104
  5. Step 5: Solve for x
    x = 12,770,017,982,388,104/121,291,715.32
  6. Step 6: Final answer
    x = 105,283,513.79

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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.