Home / 521,903,537.58-720,229,728.60-307,331,543.82

Finding the Fourth Proportional to 521,903,537.58, 720,229,728.60 and 307,331,543.82

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Solution

The fourth proportional to 521,903,537.58, 720,229,728.60 and 307,331,543.82 is: 424,119,206.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,903,537.58 : 720,229,728.60 = 307,331,543.82 : x
  2. Step 2: Convert to fraction form
    521,903,537.58/720,229,728.60 = 307,331,543.82/x
  3. Step 3: Cross multiply
    521,903,537.58x = 720,229,728.60 × 307,331,543.82
  4. Step 4: Simplify right side
    521,903,537.58x = 221,349,314,395,697,600
  5. Step 5: Solve for x
    x = 221,349,314,395,697,600/521,903,537.58
  6. Step 6: Final answer
    x = 424,119,206.82

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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.