Home / 399,178,720.80-598,768,081.20-245,997,741.60

Finding the Fourth Proportional to 399,178,720.80, 598,768,081.20 and 245,997,741.60

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Solution

The fourth proportional to 399,178,720.80, 598,768,081.20 and 245,997,741.60 is: 368,996,612.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,178,720.80 : 598,768,081.20 = 245,997,741.60 : x
  2. Step 2: Convert to fraction form
    399,178,720.80/598,768,081.20 = 245,997,741.60/x
  3. Step 3: Cross multiply
    399,178,720.80x = 598,768,081.20 × 245,997,741.60
  4. Step 4: Simplify right side
    399,178,720.80x = 147,295,595,717,365,440
  5. Step 5: Solve for x
    x = 147,295,595,717,365,440/399,178,720.80
  6. Step 6: Final answer
    x = 368,996,612.40

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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.