Home / 421,515,150.72-581,697,794.88-230,772,985.44

Finding the Fourth Proportional to 421,515,150.72, 581,697,794.88 and 230,772,985.44

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Solution

The fourth proportional to 421,515,150.72, 581,697,794.88 and 230,772,985.44 is: 318,470,490.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,515,150.72 : 581,697,794.88 = 230,772,985.44 : x
  2. Step 2: Convert to fraction form
    421,515,150.72/581,697,794.88 = 230,772,985.44/x
  3. Step 3: Cross multiply
    421,515,150.72x = 581,697,794.88 × 230,772,985.44
  4. Step 4: Simplify right side
    421,515,150.72x = 134,240,136,748,322,352
  5. Step 5: Solve for x
    x = 134,240,136,748,322,352/421,515,150.72
  6. Step 6: Final answer
    x = 318,470,490.37

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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.