Home / 685,047,331.24-945,368,682.24-371,781,904.96

Finding the Fourth Proportional to 685,047,331.24, 945,368,682.24 and 371,781,904.96

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Solution

The fourth proportional to 685,047,331.24, 945,368,682.24 and 371,781,904.96 is: 513,060,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,047,331.24 : 945,368,682.24 = 371,781,904.96 : x
  2. Step 2: Convert to fraction form
    685,047,331.24/945,368,682.24 = 371,781,904.96/x
  3. Step 3: Cross multiply
    685,047,331.24x = 945,368,682.24 × 371,781,904.96
  4. Step 4: Simplify right side
    685,047,331.24x = 351,470,969,572,712,128
  5. Step 5: Solve for x
    x = 351,470,969,572,712,128/685,047,331.24
  6. Step 6: Final answer
    x = 513,060,855.13

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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.