Home / 641,689,200.90-962,533,801.35-205,004,131.20

Finding the Fourth Proportional to 641,689,200.90, 962,533,801.35 and 205,004,131.20

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Solution

The fourth proportional to 641,689,200.90, 962,533,801.35 and 205,004,131.20 is: 307,506,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,689,200.90 : 962,533,801.35 = 205,004,131.20 : x
  2. Step 2: Convert to fraction form
    641,689,200.90/962,533,801.35 = 205,004,131.20/x
  3. Step 3: Cross multiply
    641,689,200.90x = 962,533,801.35 × 205,004,131.20
  4. Step 4: Simplify right side
    641,689,200.90x = 197,323,405,696,390,144
  5. Step 5: Solve for x
    x = 197,323,405,696,390,144/641,689,200.90
  6. Step 6: Final answer
    x = 307,506,196.80

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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.