Home / 18,855,728.91-28,303,384.05-16,710,478.74

Finding the Fourth Proportional to 18,855,728.91, 28,303,384.05 and 16,710,478.74

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Solution

The fourth proportional to 18,855,728.91, 28,303,384.05 and 16,710,478.74 is: 25,083,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855,728.91 : 28,303,384.05 = 16,710,478.74 : x
  2. Step 2: Convert to fraction form
    18,855,728.91/28,303,384.05 = 16,710,478.74/x
  3. Step 3: Cross multiply
    18,855,728.91x = 28,303,384.05 × 16,710,478.74
  4. Step 4: Simplify right side
    18,855,728.91x = 472,963,097,437,580.12
  5. Step 5: Solve for x
    x = 472,963,097,437,580.12/18,855,728.91
  6. Step 6: Final answer
    x = 25,083,257.17

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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.