Home / 1,172,715,523.59-1,759,289,540.82-385,813,464.15

Finding the Fourth Proportional to 1,172,715,523.59, 1,759,289,540.82 and 385,813,464.15

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Solution

The fourth proportional to 1,172,715,523.59, 1,759,289,540.82 and 385,813,464.15 is: 578,791,342.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,715,523.59 : 1,759,289,540.82 = 385,813,464.15 : x
  2. Step 2: Convert to fraction form
    1,172,715,523.59/1,759,289,540.82 = 385,813,464.15/x
  3. Step 3: Cross multiply
    1,172,715,523.59x = 1,759,289,540.82 × 385,813,464.15
  4. Step 4: Simplify right side
    1,172,715,523.59x = 678,757,592,186,626,944
  5. Step 5: Solve for x
    x = 678,757,592,186,626,944/1,172,715,523.59
  6. Step 6: Final answer
    x = 578,791,342.43

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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.