Home / 85,812,144.72-118,421,222.28-50,531,480.40

Finding the Fourth Proportional to 85,812,144.72, 118,421,222.28 and 50,531,480.40

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Solution

The fourth proportional to 85,812,144.72, 118,421,222.28 and 50,531,480.40 is: 69,733,715.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,812,144.72 : 118,421,222.28 = 50,531,480.40 : x
  2. Step 2: Convert to fraction form
    85,812,144.72/118,421,222.28 = 50,531,480.40/x
  3. Step 3: Cross multiply
    85,812,144.72x = 118,421,222.28 × 50,531,480.40
  4. Step 4: Simplify right side
    85,812,144.72x = 5,983,999,672,585,863
  5. Step 5: Solve for x
    x = 5,983,999,672,585,863/85,812,144.72
  6. Step 6: Final answer
    x = 69,733,715.34

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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.