Home / 155,385,666.04-214,432,186.80-85,771,028.47

Finding the Fourth Proportional to 155,385,666.04, 214,432,186.80 and 85,771,028.47

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Solution

The fourth proportional to 155,385,666.04, 214,432,186.80 and 85,771,028.47 is: 118,364,001.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,385,666.04 : 214,432,186.80 = 85,771,028.47 : x
  2. Step 2: Convert to fraction form
    155,385,666.04/214,432,186.80 = 85,771,028.47/x
  3. Step 3: Cross multiply
    155,385,666.04x = 214,432,186.80 × 85,771,028.47
  4. Step 4: Simplify right side
    155,385,666.04x = 18,392,069,198,907,160
  5. Step 5: Solve for x
    x = 18,392,069,198,907,160/155,385,666.04
  6. Step 6: Final answer
    x = 118,364,001.44

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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.