Home / 313,539,003.88-432,711,395.59-172,435,089.34

Finding the Fourth Proportional to 313,539,003.88, 432,711,395.59 and 172,435,089.34

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Solution

The fourth proportional to 313,539,003.88, 432,711,395.59 and 172,435,089.34 is: 237,975,585.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,539,003.88 : 432,711,395.59 = 172,435,089.34 : x
  2. Step 2: Convert to fraction form
    313,539,003.88/432,711,395.59 = 172,435,089.34/x
  3. Step 3: Cross multiply
    313,539,003.88x = 432,711,395.59 × 172,435,089.34
  4. Step 4: Simplify right side
    313,539,003.88x = 74,614,628,156,997,728
  5. Step 5: Solve for x
    x = 74,614,628,156,997,728/313,539,003.88
  6. Step 6: Final answer
    x = 237,975,585.92

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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.