Home / 30,072,523.40-45,127,760.79-12,800,696.70

Finding the Fourth Proportional to 30,072,523.40, 45,127,760.79 and 12,800,696.70

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Solution

The fourth proportional to 30,072,523.40, 45,127,760.79 and 12,800,696.70 is: 19,209,122.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,072,523.40 : 45,127,760.79 = 12,800,696.70 : x
  2. Step 2: Convert to fraction form
    30,072,523.40/45,127,760.79 = 12,800,696.70/x
  3. Step 3: Cross multiply
    30,072,523.40x = 45,127,760.79 × 12,800,696.70
  4. Step 4: Simplify right side
    30,072,523.40x = 577,666,778,622,942.38
  5. Step 5: Solve for x
    x = 577,666,778,622,942.38/30,072,523.40
  6. Step 6: Final answer
    x = 19,209,122.26

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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.