Home / 31,507,018.70-47,331,386.85-30,302,419.10

Finding the Fourth Proportional to 31,507,018.70, 47,331,386.85 and 30,302,419.10

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Solution

The fourth proportional to 31,507,018.70, 47,331,386.85 and 30,302,419.10 is: 45,521,778.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507,018.70 : 47,331,386.85 = 30,302,419.10 : x
  2. Step 2: Convert to fraction form
    31,507,018.70/47,331,386.85 = 30,302,419.10/x
  3. Step 3: Cross multiply
    31,507,018.70x = 47,331,386.85 × 30,302,419.10
  4. Step 4: Simplify right side
    31,507,018.70x = 1,434,255,520,912,929
  5. Step 5: Solve for x
    x = 1,434,255,520,912,929/31,507,018.70
  6. Step 6: Final answer
    x = 45,521,778.32

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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.