Home / 155,492,242.80-214,575,188.04-85,876,125.36

Finding the Fourth Proportional to 155,492,242.80, 214,575,188.04 and 85,876,125.36

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Solution

The fourth proportional to 155,492,242.80, 214,575,188.04 and 85,876,125.36 is: 118,506,784.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,492,242.80 : 214,575,188.04 = 85,876,125.36 : x
  2. Step 2: Convert to fraction form
    155,492,242.80/214,575,188.04 = 85,876,125.36/x
  3. Step 3: Cross multiply
    155,492,242.80x = 214,575,188.04 × 85,876,125.36
  4. Step 4: Simplify right side
    155,492,242.80x = 18,426,885,747,268,612
  5. Step 5: Solve for x
    x = 18,426,885,747,268,612/155,492,242.80
  6. Step 6: Final answer
    x = 118,506,784.75

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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.