Home / 291,459,617.36-436,920,385.04-145,766,399.12

Finding the Fourth Proportional to 291,459,617.36, 436,920,385.04 and 145,766,399.12

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Solution

The fourth proportional to 291,459,617.36, 436,920,385.04 and 145,766,399.12 is: 218,515,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,459,617.36 : 436,920,385.04 = 145,766,399.12 : x
  2. Step 2: Convert to fraction form
    291,459,617.36/436,920,385.04 = 145,766,399.12/x
  3. Step 3: Cross multiply
    291,459,617.36x = 436,920,385.04 × 145,766,399.12
  4. Step 4: Simplify right side
    291,459,617.36x = 63,688,311,229,404,720
  5. Step 5: Solve for x
    x = 63,688,311,229,404,720/291,459,617.36
  6. Step 6: Final answer
    x = 218,515,044.40

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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.