Home / 472,392,712.30-708,589,068.45-213,616,374.70

Finding the Fourth Proportional to 472,392,712.30, 708,589,068.45 and 213,616,374.70

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Solution

The fourth proportional to 472,392,712.30, 708,589,068.45 and 213,616,374.70 is: 320,424,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,712.30 : 708,589,068.45 = 213,616,374.70 : x
  2. Step 2: Convert to fraction form
    472,392,712.30/708,589,068.45 = 213,616,374.70/x
  3. Step 3: Cross multiply
    472,392,712.30x = 708,589,068.45 × 213,616,374.70
  4. Step 4: Simplify right side
    472,392,712.30x = 151,366,227,954,339,136
  5. Step 5: Solve for x
    x = 151,366,227,954,339,136/472,392,712.30
  6. Step 6: Final answer
    x = 320,424,562.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.