Home / 539,642,545.85-744,711,847.43-316,628,021.81

Finding the Fourth Proportional to 539,642,545.85, 744,711,847.43 and 316,628,021.81

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Solution

The fourth proportional to 539,642,545.85, 744,711,847.43 and 316,628,021.81 is: 436,949,682.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,642,545.85 : 744,711,847.43 = 316,628,021.81 : x
  2. Step 2: Convert to fraction form
    539,642,545.85/744,711,847.43 = 316,628,021.81/x
  3. Step 3: Cross multiply
    539,642,545.85x = 744,711,847.43 × 316,628,021.81
  4. Step 4: Simplify right side
    539,642,545.85x = 235,796,639,064,924,736
  5. Step 5: Solve for x
    x = 235,796,639,064,924,736/539,642,545.85
  6. Step 6: Final answer
    x = 436,949,682.49

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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.