Home / 421,515,152.72-581,697,797.64-230,772,987.44

Finding the Fourth Proportional to 421,515,152.72, 581,697,797.64 and 230,772,987.44

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Solution

The fourth proportional to 421,515,152.72, 581,697,797.64 and 230,772,987.44 is: 318,470,493.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,515,152.72 : 581,697,797.64 = 230,772,987.44 : x
  2. Step 2: Convert to fraction form
    421,515,152.72/581,697,797.64 = 230,772,987.44/x
  3. Step 3: Cross multiply
    421,515,152.72x = 581,697,797.64 × 230,772,987.44
  4. Step 4: Simplify right side
    421,515,152.72x = 134,240,138,548,651,376
  5. Step 5: Solve for x
    x = 134,240,138,548,651,376/421,515,152.72
  6. Step 6: Final answer
    x = 318,470,493.13

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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.