Home / 57,008,909.94-78,672,400.74-30,903,347.04

Finding the Fourth Proportional to 57,008,909.94, 78,672,400.74 and 30,903,347.04

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Solution

The fourth proportional to 57,008,909.94, 78,672,400.74 and 30,903,347.04 is: 42,646,675.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008,909.94 : 78,672,400.74 = 30,903,347.04 : x
  2. Step 2: Convert to fraction form
    57,008,909.94/78,672,400.74 = 30,903,347.04/x
  3. Step 3: Cross multiply
    57,008,909.94x = 78,672,400.74 × 30,903,347.04
  4. Step 4: Simplify right side
    57,008,909.94x = 2,431,240,502,538,172.50
  5. Step 5: Solve for x
    x = 2,431,240,502,538,172.50/57,008,909.94
  6. Step 6: Final answer
    x = 42,646,675.85

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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.