Home / 528,068,428.80-792,067,213.80-139,882,927.20

Finding the Fourth Proportional to 528,068,428.80, 792,067,213.80 and 139,882,927.20

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Solution

The fourth proportional to 528,068,428.80, 792,067,213.80 and 139,882,927.20 is: 209,815,005.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,068,428.80 : 792,067,213.80 = 139,882,927.20 : x
  2. Step 2: Convert to fraction form
    528,068,428.80/792,067,213.80 = 139,882,927.20/x
  3. Step 3: Cross multiply
    528,068,428.80x = 792,067,213.80 × 139,882,927.20
  4. Step 4: Simplify right side
    528,068,428.80x = 110,796,680,405,492,224
  5. Step 5: Solve for x
    x = 110,796,680,405,492,224/528,068,428.80
  6. Step 6: Final answer
    x = 209,815,005.71

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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.