Home / 13,215,222,050.55-19,822,833,075.83-12,113,225,992.95

Finding the Fourth Proportional to 13,215,222,050.55, 19,822,833,075.83 and 12,113,225,992.95

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Solution

The fourth proportional to 13,215,222,050.55, 19,822,833,075.83 and 12,113,225,992.95 is: 18,169,838,989.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,222,050.55 : 19,822,833,075.83 = 12,113,225,992.95 : x
  2. Step 2: Convert to fraction form
    13,215,222,050.55/19,822,833,075.83 = 12,113,225,992.95/x
  3. Step 3: Cross multiply
    13,215,222,050.55x = 19,822,833,075.83 × 12,113,225,992.95
  4. Step 4: Simplify right side
    13,215,222,050.55x = 240,118,456,867,992,403,968
  5. Step 5: Solve for x
    x = 240,118,456,867,992,403,968/13,215,222,050.55
  6. Step 6: Final answer
    x = 18,169,838,989.43

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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.