Home / 817,315,911.90-1,128,538,610.01-658,040,089.50

Finding the Fourth Proportional to 817,315,911.90, 1,128,538,610.01 and 658,040,089.50

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Solution

The fourth proportional to 817,315,911.90, 1,128,538,610.01 and 658,040,089.50 is: 908,612,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,315,911.90 : 1,128,538,610.01 = 658,040,089.50 : x
  2. Step 2: Convert to fraction form
    817,315,911.90/1,128,538,610.01 = 658,040,089.50/x
  3. Step 3: Cross multiply
    817,315,911.90x = 1,128,538,610.01 × 658,040,089.50
  4. Step 4: Simplify right side
    817,315,911.90x = 742,623,647,935,186,048
  5. Step 5: Solve for x
    x = 742,623,647,935,186,048/817,315,911.90
  6. Step 6: Final answer
    x = 908,612,737.28

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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.