Home / 472,392,693.30-708,589,039.95-213,616,355.70

Finding the Fourth Proportional to 472,392,693.30, 708,589,039.95 and 213,616,355.70

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Solution

The fourth proportional to 472,392,693.30, 708,589,039.95 and 213,616,355.70 is: 320,424,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,693.30 : 708,589,039.95 = 213,616,355.70 : x
  2. Step 2: Convert to fraction form
    472,392,693.30/708,589,039.95 = 213,616,355.70/x
  3. Step 3: Cross multiply
    472,392,693.30x = 708,589,039.95 × 213,616,355.70
  4. Step 4: Simplify right side
    472,392,693.30x = 151,366,208,403,080,704
  5. Step 5: Solve for x
    x = 151,366,208,403,080,704/472,392,693.30
  6. Step 6: Final answer
    x = 320,424,533.55

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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.