Home / 13,420,129.14-18,520,023.48-7,460,095.53

Finding the Fourth Proportional to 13,420,129.14, 18,520,023.48 and 7,460,095.53

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Solution

The fourth proportional to 13,420,129.14, 18,520,023.48 and 7,460,095.53 is: 10,295,068.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,129.14 : 18,520,023.48 = 7,460,095.53 : x
  2. Step 2: Convert to fraction form
    13,420,129.14/18,520,023.48 = 7,460,095.53/x
  3. Step 3: Cross multiply
    13,420,129.14x = 18,520,023.48 × 7,460,095.53
  4. Step 4: Simplify right side
    13,420,129.14x = 138,161,144,378,643.05
  5. Step 5: Solve for x
    x = 138,161,144,378,643.05/13,420,129.14
  6. Step 6: Final answer
    x = 10,295,068.17

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1.5x scale

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.