Home / 788,385,273.35-1,087,978,726.61-435,984,974.78

Finding the Fourth Proportional to 788,385,273.35, 1,087,978,726.61 and 435,984,974.78

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Solution

The fourth proportional to 788,385,273.35, 1,087,978,726.61 and 435,984,974.78 is: 601,663,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,385,273.35 : 1,087,978,726.61 = 435,984,974.78 : x
  2. Step 2: Convert to fraction form
    788,385,273.35/1,087,978,726.61 = 435,984,974.78/x
  3. Step 3: Cross multiply
    788,385,273.35x = 1,087,978,726.61 × 435,984,974.78
  4. Step 4: Simplify right side
    788,385,273.35x = 474,342,377,674,617,536
  5. Step 5: Solve for x
    x = 474,342,377,674,617,536/788,385,273.35
  6. Step 6: Final answer
    x = 601,663,163.57

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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.