Home / 472,393,312.80-708,589,969.20-213,616,975.20

Finding the Fourth Proportional to 472,393,312.80, 708,589,969.20 and 213,616,975.20

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Solution

The fourth proportional to 472,393,312.80, 708,589,969.20 and 213,616,975.20 is: 320,425,462.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,312.80 : 708,589,969.20 = 213,616,975.20 : x
  2. Step 2: Convert to fraction form
    472,393,312.80/708,589,969.20 = 213,616,975.20/x
  3. Step 3: Cross multiply
    472,393,312.80x = 708,589,969.20 × 213,616,975.20
  4. Step 4: Simplify right side
    472,393,312.80x = 151,366,845,877,565,152
  5. Step 5: Solve for x
    x = 151,366,845,877,565,152/472,393,312.80
  6. Step 6: Final answer
    x = 320,425,462.80

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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.