Home / 28,272,450.21-42,369,440.01-12,882,127.98

Finding the Fourth Proportional to 28,272,450.21, 42,369,440.01 and 12,882,127.98

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Solution

The fourth proportional to 28,272,450.21, 42,369,440.01 and 12,882,127.98 is: 19,305,314.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,272,450.21 : 42,369,440.01 = 12,882,127.98 : x
  2. Step 2: Convert to fraction form
    28,272,450.21/42,369,440.01 = 12,882,127.98/x
  3. Step 3: Cross multiply
    28,272,450.21x = 42,369,440.01 × 12,882,127.98
  4. Step 4: Simplify right side
    28,272,450.21x = 545,808,548,649,752.50
  5. Step 5: Solve for x
    x = 545,808,548,649,752.50/28,272,450.21
  6. Step 6: Final answer
    x = 19,305,314.70

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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.