Home / 999,962,350.53-1,379,929,580.70-553,915,926.85

Finding the Fourth Proportional to 999,962,350.53, 1,379,929,580.70 and 553,915,926.85

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Solution

The fourth proportional to 999,962,350.53, 1,379,929,580.70 and 553,915,926.85 is: 764,393,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,962,350.53 : 1,379,929,580.70 = 553,915,926.85 : x
  2. Step 2: Convert to fraction form
    999,962,350.53/1,379,929,580.70 = 553,915,926.85/x
  3. Step 3: Cross multiply
    999,962,350.53x = 1,379,929,580.70 × 553,915,926.85
  4. Step 4: Simplify right side
    999,962,350.53x = 764,364,972,681,172,480
  5. Step 5: Solve for x
    x = 764,364,972,681,172,480/999,962,350.53
  6. Step 6: Final answer
    x = 764,393,751.70

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1.5x scale

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.