Home / 20,905,812.30-31,358,718.45-16,601,140.20

Finding the Fourth Proportional to 20,905,812.30, 31,358,718.45 and 16,601,140.20

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Solution

The fourth proportional to 20,905,812.30, 31,358,718.45 and 16,601,140.20 is: 24,901,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,905,812.30 : 31,358,718.45 = 16,601,140.20 : x
  2. Step 2: Convert to fraction form
    20,905,812.30/31,358,718.45 = 16,601,140.20/x
  3. Step 3: Cross multiply
    20,905,812.30x = 31,358,718.45 × 16,601,140.20
  4. Step 4: Simplify right side
    20,905,812.30x = 520,590,481,480,776.62
  5. Step 5: Solve for x
    x = 520,590,481,480,776.62/20,905,812.30
  6. Step 6: Final answer
    x = 24,901,710.30

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1.5x scale

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.