Home / 431,038,687-646,563,633.54-143,824,351

Finding the Fourth Proportional to 431,038,687, 646,563,633.54 and 143,824,351

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Solution

The fourth proportional to 431,038,687, 646,563,633.54 and 143,824,351 is: 215,738,396.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,038,687 : 646,563,633.54 = 143,824,351 : x
  2. Step 2: Convert to fraction form
    431,038,687/646,563,633.54 = 143,824,351/x
  3. Step 3: Cross multiply
    431,038,687x = 646,563,633.54 × 143,824,351
  4. Step 4: Simplify right side
    431,038,687x = 92,991,594,974,092,320
  5. Step 5: Solve for x
    x = 92,991,594,974,092,320/431,038,687
  6. Step 6: Final answer
    x = 215,738,396.06

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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.