Home / 373,386,807.12-515,260,286.64-206,119,475.76

Finding the Fourth Proportional to 373,386,807.12, 515,260,286.64 and 206,119,475.76

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Solution

The fourth proportional to 373,386,807.12, 515,260,286.64 and 206,119,475.76 is: 284,437,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,386,807.12 : 515,260,286.64 = 206,119,475.76 : x
  2. Step 2: Convert to fraction form
    373,386,807.12/515,260,286.64 = 206,119,475.76/x
  3. Step 3: Cross multiply
    373,386,807.12x = 515,260,286.64 × 206,119,475.76
  4. Step 4: Simplify right side
    373,386,807.12x = 106,205,180,162,184,128
  5. Step 5: Solve for x
    x = 106,205,180,162,184,128/373,386,807.12
  6. Step 6: Final answer
    x = 284,437,420.22

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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.