Home / 869,116,511.80-1,303,674,767.70-523,892,438.20

Finding the Fourth Proportional to 869,116,511.80, 1,303,674,767.70 and 523,892,438.20

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Solution

The fourth proportional to 869,116,511.80, 1,303,674,767.70 and 523,892,438.20 is: 785,838,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,116,511.80 : 1,303,674,767.70 = 523,892,438.20 : x
  2. Step 2: Convert to fraction form
    869,116,511.80/1,303,674,767.70 = 523,892,438.20/x
  3. Step 3: Cross multiply
    869,116,511.80x = 1,303,674,767.70 × 523,892,438.20
  4. Step 4: Simplify right side
    869,116,511.80x = 682,985,352,670,171,648
  5. Step 5: Solve for x
    x = 682,985,352,670,171,648/869,116,511.80
  6. Step 6: Final answer
    x = 785,838,657.30

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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.