Home / 472,461,206.80-708,691,810.20-427,111,574.80

Finding the Fourth Proportional to 472,461,206.80, 708,691,810.20 and 427,111,574.80

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Solution

The fourth proportional to 472,461,206.80, 708,691,810.20 and 427,111,574.80 is: 640,667,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,461,206.80 : 708,691,810.20 = 427,111,574.80 : x
  2. Step 2: Convert to fraction form
    472,461,206.80/708,691,810.20 = 427,111,574.80/x
  3. Step 3: Cross multiply
    472,461,206.80x = 708,691,810.20 × 427,111,574.80
  4. Step 4: Simplify right side
    472,461,206.80x = 302,690,475,102,384,704
  5. Step 5: Solve for x
    x = 302,690,475,102,384,704/472,461,206.80
  6. Step 6: Final answer
    x = 640,667,362.20

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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.