Home / 206,076,053.60-309,114,080.40-145,609,877.60

Finding the Fourth Proportional to 206,076,053.60, 309,114,080.40 and 145,609,877.60

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Solution

The fourth proportional to 206,076,053.60, 309,114,080.40 and 145,609,877.60 is: 218,414,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,076,053.60 : 309,114,080.40 = 145,609,877.60 : x
  2. Step 2: Convert to fraction form
    206,076,053.60/309,114,080.40 = 145,609,877.60/x
  3. Step 3: Cross multiply
    206,076,053.60x = 309,114,080.40 × 145,609,877.60
  4. Step 4: Simplify right side
    206,076,053.60x = 45,010,063,411,480,552
  5. Step 5: Solve for x
    x = 45,010,063,411,480,552/206,076,053.60
  6. Step 6: Final answer
    x = 218,414,816.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.