Home / 30,553,521.57-42,163,018.61-16,802,485.65

Finding the Fourth Proportional to 30,553,521.57, 42,163,018.61 and 16,802,485.65

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Solution

The fourth proportional to 30,553,521.57, 42,163,018.61 and 16,802,485.65 is: 23,186,967.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,553,521.57 : 42,163,018.61 = 16,802,485.65 : x
  2. Step 2: Convert to fraction form
    30,553,521.57/42,163,018.61 = 16,802,485.65/x
  3. Step 3: Cross multiply
    30,553,521.57x = 42,163,018.61 × 16,802,485.65
  4. Step 4: Simplify right side
    30,553,521.57x = 708,443,515,071,195.38
  5. Step 5: Solve for x
    x = 708,443,515,071,195.38/30,553,521.57
  6. Step 6: Final answer
    x = 23,186,967.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.