Home / 12,782,056.95-19,173,077.01-3,197,428.20

Finding the Fourth Proportional to 12,782,056.95, 19,173,077.01 and 3,197,428.20

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Solution

The fourth proportional to 12,782,056.95, 19,173,077.01 and 3,197,428.20 is: 4,796,140.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782,056.95 : 19,173,077.01 = 3,197,428.20 : x
  2. Step 2: Convert to fraction form
    12,782,056.95/19,173,077.01 = 3,197,428.20/x
  3. Step 3: Cross multiply
    12,782,056.95x = 19,173,077.01 × 3,197,428.20
  4. Step 4: Simplify right side
    12,782,056.95x = 61,304,537,112,545.69
  5. Step 5: Solve for x
    x = 61,304,537,112,545.69/12,782,056.95
  6. Step 6: Final answer
    x = 4,796,140.19

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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.