Home / 145,457,145.94-200,735,125.01-79,381,892.61

Finding the Fourth Proportional to 145,457,145.94, 200,735,125.01 and 79,381,892.61

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Solution

The fourth proportional to 145,457,145.94, 200,735,125.01 and 79,381,892.61 is: 109,549,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,457,145.94 : 200,735,125.01 = 79,381,892.61 : x
  2. Step 2: Convert to fraction form
    145,457,145.94/200,735,125.01 = 79,381,892.61/x
  3. Step 3: Cross multiply
    145,457,145.94x = 200,735,125.01 × 79,381,892.61
  4. Step 4: Simplify right side
    145,457,145.94x = 15,934,734,136,598,744
  5. Step 5: Solve for x
    x = 15,934,734,136,598,744/145,457,145.94
  6. Step 6: Final answer
    x = 109,549,338.63

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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.