Home / 30,443,538.75-42,018,186.84-18,060,505.55

Finding the Fourth Proportional to 30,443,538.75, 42,018,186.84 and 18,060,505.55

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Solution

The fourth proportional to 30,443,538.75, 42,018,186.84 and 18,060,505.55 is: 24,927,118.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443,538.75 : 42,018,186.84 = 18,060,505.55 : x
  2. Step 2: Convert to fraction form
    30,443,538.75/42,018,186.84 = 18,060,505.55/x
  3. Step 3: Cross multiply
    30,443,538.75x = 42,018,186.84 × 18,060,505.55
  4. Step 4: Simplify right side
    30,443,538.75x = 758,869,696,624,757
  5. Step 5: Solve for x
    x = 758,869,696,624,757/30,443,538.75
  6. Step 6: Final answer
    x = 24,927,118.46

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Double scale
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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.