Home / 12,390,735.69-18,583,296.89-4,711,642.88

Finding the Fourth Proportional to 12,390,735.69, 18,583,296.89 and 4,711,642.88

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Solution

The fourth proportional to 12,390,735.69, 18,583,296.89 and 4,711,642.88 is: 7,066,397.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,735.69 : 18,583,296.89 = 4,711,642.88 : x
  2. Step 2: Convert to fraction form
    12,390,735.69/18,583,296.89 = 4,711,642.88/x
  3. Step 3: Cross multiply
    12,390,735.69x = 18,583,296.89 × 4,711,642.88
  4. Step 4: Simplify right side
    12,390,735.69x = 87,557,858,362,219.95
  5. Step 5: Solve for x
    x = 87,557,858,362,219.95/12,390,735.69
  6. Step 6: Final answer
    x = 7,066,397.07

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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.