Home / 1,328,487,000.14-1,991,959,548.86-628,973,263.54

Finding the Fourth Proportional to 1,328,487,000.14, 1,991,959,548.86 and 628,973,263.54

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Solution

The fourth proportional to 1,328,487,000.14, 1,991,959,548.86 and 628,973,263.54 is: 943,094,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,487,000.14 : 1,991,959,548.86 = 628,973,263.54 : x
  2. Step 2: Convert to fraction form
    1,328,487,000.14/1,991,959,548.86 = 628,973,263.54/x
  3. Step 3: Cross multiply
    1,328,487,000.14x = 1,991,959,548.86 × 628,973,263.54
  4. Step 4: Simplify right side
    1,328,487,000.14x = 1,252,889,298,286,140,160
  5. Step 5: Solve for x
    x = 1,252,889,298,286,140,160/1,328,487,000.14
  6. Step 6: Final answer
    x = 943,094,887.76

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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.