Home / 21,136,276.80-31,704,415.20-19,708,603.20

Finding the Fourth Proportional to 21,136,276.80, 31,704,415.20 and 19,708,603.20

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Solution

The fourth proportional to 21,136,276.80, 31,704,415.20 and 19,708,603.20 is: 29,562,904.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,136,276.80 : 31,704,415.20 = 19,708,603.20 : x
  2. Step 2: Convert to fraction form
    21,136,276.80/31,704,415.20 = 19,708,603.20/x
  3. Step 3: Cross multiply
    21,136,276.80x = 31,704,415.20 × 19,708,603.20
  4. Step 4: Simplify right side
    21,136,276.80x = 624,849,738,864,848.62
  5. Step 5: Solve for x
    x = 624,849,738,864,848.62/21,136,276.80
  6. Step 6: Final answer
    x = 29,562,904.80

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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.