Home / 421,445,603.82-581,610,504.99-230,719,990.98

Finding the Fourth Proportional to 421,445,603.82, 581,610,504.99 and 230,719,990.98

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Solution

The fourth proportional to 421,445,603.82, 581,610,504.99 and 230,719,990.98 is: 318,402,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,445,603.82 : 581,610,504.99 = 230,719,990.98 : x
  2. Step 2: Convert to fraction form
    421,445,603.82/581,610,504.99 = 230,719,990.98/x
  3. Step 3: Cross multiply
    421,445,603.82x = 581,610,504.99 × 230,719,990.98
  4. Step 4: Simplify right side
    421,445,603.82x = 134,189,170,465,166,048
  5. Step 5: Solve for x
    x = 134,189,170,465,166,048/421,445,603.82
  6. Step 6: Final answer
    x = 318,402,112.27

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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.