Home / 876,244,319,072.05-1,209,216,243,222.20-490,871,377,621.72

Finding the Fourth Proportional to 876,244,319,072.05, 1,209,216,243,222.20 and 490,871,377,621.72

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Solution

The fourth proportional to 876,244,319,072.05, 1,209,216,243,222.20 and 490,871,377,621.72 is: 677,401,987,360.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,244,319,072.05 : 1,209,216,243,222.20 = 490,871,377,621.72 : x
  2. Step 2: Convert to fraction form
    876,244,319,072.05/1,209,216,243,222.20 = 490,871,377,621.72/x
  3. Step 3: Cross multiply
    876,244,319,072.05x = 1,209,216,243,222.20 × 490,871,377,621.72
  4. Step 4: Simplify right side
    876,244,319,072.05x = 593,569,643,153,042,092,064,768
  5. Step 5: Solve for x
    x = 593,569,643,153,042,092,064,768/876,244,319,072.05
  6. Step 6: Final answer
    x = 677,401,987,360.83

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Double scale
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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.