Home / 85,638,121.65-118,167,108.85-49,880,447.33

Finding the Fourth Proportional to 85,638,121.65, 118,167,108.85 and 49,880,447.33

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Solution

The fourth proportional to 85,638,121.65, 118,167,108.85 and 49,880,447.33 is: 68,827,154.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,638,121.65 : 118,167,108.85 = 49,880,447.33 : x
  2. Step 2: Convert to fraction form
    85,638,121.65/118,167,108.85 = 49,880,447.33/x
  3. Step 3: Cross multiply
    85,638,121.65x = 118,167,108.85 × 49,880,447.33
  4. Step 4: Simplify right side
    85,638,121.65x = 5,894,228,248,539,966
  5. Step 5: Solve for x
    x = 5,894,228,248,539,966/85,638,121.65
  6. Step 6: Final answer
    x = 68,827,154.72

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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.