Home / 205,606,306.67-308,410,509.76-69,292,871.15

Finding the Fourth Proportional to 205,606,306.67, 308,410,509.76 and 69,292,871.15

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Solution

The fourth proportional to 205,606,306.67, 308,410,509.76 and 69,292,871.15 is: 103,939,660.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,606,306.67 : 308,410,509.76 = 69,292,871.15 : x
  2. Step 2: Convert to fraction form
    205,606,306.67/308,410,509.76 = 69,292,871.15/x
  3. Step 3: Cross multiply
    205,606,306.67x = 308,410,509.76 × 69,292,871.15
  4. Step 4: Simplify right side
    205,606,306.67x = 21,370,649,712,390,212
  5. Step 5: Solve for x
    x = 21,370,649,712,390,212/205,606,306.67
  6. Step 6: Final answer
    x = 103,939,660.50

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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.