Home / 684,405,840.82-944,480,312.08-371,139,971.76

Finding the Fourth Proportional to 684,405,840.82, 944,480,312.08 and 371,139,971.76

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Solution

The fourth proportional to 684,405,840.82, 944,480,312.08 and 371,139,971.76 is: 512,173,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,405,840.82 : 944,480,312.08 = 371,139,971.76 : x
  2. Step 2: Convert to fraction form
    684,405,840.82/944,480,312.08 = 371,139,971.76/x
  3. Step 3: Cross multiply
    684,405,840.82x = 944,480,312.08 × 371,139,971.76
  4. Step 4: Simplify right side
    684,405,840.82x = 350,534,396,353,247,168
  5. Step 5: Solve for x
    x = 350,534,396,353,247,168/684,405,840.82
  6. Step 6: Final answer
    x = 512,173,297.55

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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.