Home / 12,921,360.84-19,363,754.30-7,166,627.55

Finding the Fourth Proportional to 12,921,360.84, 19,363,754.30 and 7,166,627.55

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Solution

The fourth proportional to 12,921,360.84, 19,363,754.30 and 7,166,627.55 is: 10,739,798.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,360.84 : 19,363,754.30 = 7,166,627.55 : x
  2. Step 2: Convert to fraction form
    12,921,360.84/19,363,754.30 = 7,166,627.55/x
  3. Step 3: Cross multiply
    12,921,360.84x = 19,363,754.30 × 7,166,627.55
  4. Step 4: Simplify right side
    12,921,360.84x = 138,772,815,001,977.84
  5. Step 5: Solve for x
    x = 138,772,815,001,977.84/12,921,360.84
  6. Step 6: Final answer
    x = 10,739,798.75

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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.