Home / 291,270,526.40-436,905,789.60-75,859,774.40

Finding the Fourth Proportional to 291,270,526.40, 436,905,789.60 and 75,859,774.40

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Solution

The fourth proportional to 291,270,526.40, 436,905,789.60 and 75,859,774.40 is: 113,789,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,270,526.40 : 436,905,789.60 = 75,859,774.40 : x
  2. Step 2: Convert to fraction form
    291,270,526.40/436,905,789.60 = 75,859,774.40/x
  3. Step 3: Cross multiply
    291,270,526.40x = 436,905,789.60 × 75,859,774.40
  4. Step 4: Simplify right side
    291,270,526.40x = 33,143,574,633,109,872
  5. Step 5: Solve for x
    x = 33,143,574,633,109,872/291,270,526.40
  6. Step 6: Final answer
    x = 113,789,661.60

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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.