Home / 384,335,063.74-530,420,325.51-219,347,317.18

Finding the Fourth Proportional to 384,335,063.74, 530,420,325.51 and 219,347,317.18

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Solution

The fourth proportional to 384,335,063.74, 530,420,325.51 and 219,347,317.18 is: 302,720,949.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,335,063.74 : 530,420,325.51 = 219,347,317.18 : x
  2. Step 2: Convert to fraction form
    384,335,063.74/530,420,325.51 = 219,347,317.18/x
  3. Step 3: Cross multiply
    384,335,063.74x = 530,420,325.51 × 219,347,317.18
  4. Step 4: Simplify right side
    384,335,063.74x = 116,346,275,378,360,816
  5. Step 5: Solve for x
    x = 116,346,275,378,360,816/384,335,063.74
  6. Step 6: Final answer
    x = 302,720,949.39

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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.