Home / 30,927,654.72-42,678,781.92-18,544,583.04

Finding the Fourth Proportional to 30,927,654.72, 42,678,781.92 and 18,544,583.04

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Solution

The fourth proportional to 30,927,654.72, 42,678,781.92 and 18,544,583.04 is: 25,590,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,927,654.72 : 42,678,781.92 = 18,544,583.04 : x
  2. Step 2: Convert to fraction form
    30,927,654.72/42,678,781.92 = 18,544,583.04/x
  3. Step 3: Cross multiply
    30,927,654.72x = 42,678,781.92 × 18,544,583.04
  4. Step 4: Simplify right side
    30,927,654.72x = 791,460,215,361,490.62
  5. Step 5: Solve for x
    x = 791,460,215,361,490.62/30,927,654.72
  6. Step 6: Final answer
    x = 25,590,696.18

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1.5x scale

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.