Home / 528,428,140.90-792,642,211.35-419,589,024.10

Finding the Fourth Proportional to 528,428,140.90, 792,642,211.35 and 419,589,024.10

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Solution

The fourth proportional to 528,428,140.90, 792,642,211.35 and 419,589,024.10 is: 629,383,536.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,428,140.90 : 792,642,211.35 = 419,589,024.10 : x
  2. Step 2: Convert to fraction form
    528,428,140.90/792,642,211.35 = 419,589,024.10/x
  3. Step 3: Cross multiply
    528,428,140.90x = 792,642,211.35 × 419,589,024.10
  4. Step 4: Simplify right side
    528,428,140.90x = 332,583,971,920,812,480
  5. Step 5: Solve for x
    x = 332,583,971,920,812,480/528,428,140.90
  6. Step 6: Final answer
    x = 629,383,536.15

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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.