Home / 750,385,144.80-1,126,585,486.80-478,959,199.20

Finding the Fourth Proportional to 750,385,144.80, 1,126,585,486.80 and 478,959,199.20

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Solution

The fourth proportional to 750,385,144.80, 1,126,585,486.80 and 478,959,199.20 is: 719,082,042.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,385,144.80 : 1,126,585,486.80 = 478,959,199.20 : x
  2. Step 2: Convert to fraction form
    750,385,144.80/1,126,585,486.80 = 478,959,199.20/x
  3. Step 3: Cross multiply
    750,385,144.80x = 1,126,585,486.80 × 478,959,199.20
  4. Step 4: Simplify right side
    750,385,144.80x = 539,588,482,588,070,144
  5. Step 5: Solve for x
    x = 539,588,482,588,070,144/750,385,144.80
  6. Step 6: Final answer
    x = 719,082,042.50

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1.5x scale

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.