Home / 450,442,421.80-621,616,958.94-259,699,665.67

Finding the Fourth Proportional to 450,442,421.80, 621,616,958.94 and 259,699,665.67

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Solution

The fourth proportional to 450,442,421.80, 621,616,958.94 and 259,699,665.67 is: 358,389,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,442,421.80 : 621,616,958.94 = 259,699,665.67 : x
  2. Step 2: Convert to fraction form
    450,442,421.80/621,616,958.94 = 259,699,665.67/x
  3. Step 3: Cross multiply
    450,442,421.80x = 621,616,958.94 × 259,699,665.67
  4. Step 4: Simplify right side
    450,442,421.80x = 161,433,716,411,520,128
  5. Step 5: Solve for x
    x = 161,433,716,411,520,128/450,442,421.80
  6. Step 6: Final answer
    x = 358,389,238.22

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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.