Home / 291,255,561.90-436,883,342.85-266,313,264.30

Finding the Fourth Proportional to 291,255,561.90, 436,883,342.85 and 266,313,264.30

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Solution

The fourth proportional to 291,255,561.90, 436,883,342.85 and 266,313,264.30 is: 399,469,896.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,255,561.90 : 436,883,342.85 = 266,313,264.30 : x
  2. Step 2: Convert to fraction form
    291,255,561.90/436,883,342.85 = 266,313,264.30/x
  3. Step 3: Cross multiply
    291,255,561.90x = 436,883,342.85 × 266,313,264.30
  4. Step 4: Simplify right side
    291,255,561.90x = 116,347,829,152,679,584
  5. Step 5: Solve for x
    x = 116,347,829,152,679,584/291,255,561.90
  6. Step 6: Final answer
    x = 399,469,896.45

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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.