Home / 791,440,193.28-1,187,170,386.30-209,169,405.84

Finding the Fourth Proportional to 791,440,193.28, 1,187,170,386.30 and 209,169,405.84

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Solution

The fourth proportional to 791,440,193.28, 1,187,170,386.30 and 209,169,405.84 is: 313,756,777.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,440,193.28 : 1,187,170,386.30 = 209,169,405.84 : x
  2. Step 2: Convert to fraction form
    791,440,193.28/1,187,170,386.30 = 209,169,405.84/x
  3. Step 3: Cross multiply
    791,440,193.28x = 1,187,170,386.30 × 209,169,405.84
  4. Step 4: Simplify right side
    791,440,193.28x = 248,319,724,333,214,272
  5. Step 5: Solve for x
    x = 248,319,724,333,214,272/791,440,193.28
  6. Step 6: Final answer
    x = 313,756,777.13

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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.