Home / 369,061,603.20-553,214,491.20-215,628,681.60

Finding the Fourth Proportional to 369,061,603.20, 553,214,491.20 and 215,628,681.60

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Solution

The fourth proportional to 369,061,603.20, 553,214,491.20 and 215,628,681.60 is: 323,222,221.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,061,603.20 : 553,214,491.20 = 215,628,681.60 : x
  2. Step 2: Convert to fraction form
    369,061,603.20/553,214,491.20 = 215,628,681.60/x
  3. Step 3: Cross multiply
    369,061,603.20x = 553,214,491.20 × 215,628,681.60
  4. Step 4: Simplify right side
    369,061,603.20x = 119,288,911,379,470,816
  5. Step 5: Solve for x
    x = 119,288,911,379,470,816/369,061,603.20
  6. Step 6: Final answer
    x = 323,222,221.83

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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.