Home / 12,688,707.01-17,509,137.76-7,181,122.95

Finding the Fourth Proportional to 12,688,707.01, 17,509,137.76 and 7,181,122.95

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Solution

The fourth proportional to 12,688,707.01, 17,509,137.76 and 7,181,122.95 is: 9,909,226.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688,707.01 : 17,509,137.76 = 7,181,122.95 : x
  2. Step 2: Convert to fraction form
    12,688,707.01/17,509,137.76 = 7,181,122.95/x
  3. Step 3: Cross multiply
    12,688,707.01x = 17,509,137.76 × 7,181,122.95
  4. Step 4: Simplify right side
    12,688,707.01x = 125,735,271,003,047.61
  5. Step 5: Solve for x
    x = 125,735,271,003,047.61/12,688,707.01
  6. Step 6: Final answer
    x = 9,909,226.44

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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.