Home / 13,640,835.28-18,824,354.36-7,529,265.40

Finding the Fourth Proportional to 13,640,835.28, 18,824,354.36 and 7,529,265.40

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Solution

The fourth proportional to 13,640,835.28, 18,824,354.36 and 7,529,265.40 is: 10,390,387.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,835.28 : 18,824,354.36 = 7,529,265.40 : x
  2. Step 2: Convert to fraction form
    13,640,835.28/18,824,354.36 = 7,529,265.40/x
  3. Step 3: Cross multiply
    13,640,835.28x = 18,824,354.36 × 7,529,265.40
  4. Step 4: Simplify right side
    13,640,835.28x = 141,733,559,960,087.16
  5. Step 5: Solve for x
    x = 141,733,559,960,087.16/13,640,835.28
  6. Step 6: Final answer
    x = 10,390,387.18

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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.