Home / 651,844,313.70-977,766,470.55-215,212,388.10

Finding the Fourth Proportional to 651,844,313.70, 977,766,470.55 and 215,212,388.10

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Solution

The fourth proportional to 651,844,313.70, 977,766,470.55 and 215,212,388.10 is: 322,818,582.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,844,313.70 : 977,766,470.55 = 215,212,388.10 : x
  2. Step 2: Convert to fraction form
    651,844,313.70/977,766,470.55 = 215,212,388.10/x
  3. Step 3: Cross multiply
    651,844,313.70x = 977,766,470.55 × 215,212,388.10
  4. Step 4: Simplify right side
    651,844,313.70x = 210,427,457,131,173,792
  5. Step 5: Solve for x
    x = 210,427,457,131,173,792/651,844,313.70
  6. Step 6: Final answer
    x = 322,818,582.15

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Double scale
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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.