Home / 30,927,657.72-42,678,786.06-18,544,586.04

Finding the Fourth Proportional to 30,927,657.72, 42,678,786.06 and 18,544,586.04

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Solution

The fourth proportional to 30,927,657.72, 42,678,786.06 and 18,544,586.04 is: 25,590,700.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,927,657.72 : 42,678,786.06 = 18,544,586.04 : x
  2. Step 2: Convert to fraction form
    30,927,657.72/42,678,786.06 = 18,544,586.04/x
  3. Step 3: Cross multiply
    30,927,657.72x = 42,678,786.06 × 18,544,586.04
  4. Step 4: Simplify right side
    30,927,657.72x = 791,460,420,172,422.62
  5. Step 5: Solve for x
    x = 791,460,420,172,422.62/30,927,657.72
  6. Step 6: Final answer
    x = 25,590,700.32

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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.