Home / 305,910,862.80-422,157,051.09-166,681,624.11

Finding the Fourth Proportional to 305,910,862.80, 422,157,051.09 and 166,681,624.11

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Solution

The fourth proportional to 305,910,862.80, 422,157,051.09 and 166,681,624.11 is: 230,020,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,910,862.80 : 422,157,051.09 = 166,681,624.11 : x
  2. Step 2: Convert to fraction form
    305,910,862.80/422,157,051.09 = 166,681,624.11/x
  3. Step 3: Cross multiply
    305,910,862.80x = 422,157,051.09 × 166,681,624.11
  4. Step 4: Simplify right side
    305,910,862.80x = 70,365,822,905,169,448
  5. Step 5: Solve for x
    x = 70,365,822,905,169,448/305,910,862.80
  6. Step 6: Final answer
    x = 230,020,674.20

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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.