Home / 20,138,465.35-30,210,674.91-7,355,980.63

Finding the Fourth Proportional to 20,138,465.35, 30,210,674.91 and 7,355,980.63

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Solution

The fourth proportional to 20,138,465.35, 30,210,674.91 and 7,355,980.63 is: 11,035,058.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,138,465.35 : 30,210,674.91 = 7,355,980.63 : x
  2. Step 2: Convert to fraction form
    20,138,465.35/30,210,674.91 = 7,355,980.63/x
  3. Step 3: Cross multiply
    20,138,465.35x = 30,210,674.91 × 7,355,980.63
  4. Step 4: Simplify right side
    20,138,465.35x = 222,229,139,457,187
  5. Step 5: Solve for x
    x = 222,229,139,457,187/20,138,465.35
  6. Step 6: Final answer
    x = 11,035,058.31

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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.