Home / 12,238,681.64-18,312,740.62-7,383,804.08

Finding the Fourth Proportional to 12,238,681.64, 18,312,740.62 and 7,383,804.08

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Solution

The fourth proportional to 12,238,681.64, 18,312,740.62 and 7,383,804.08 is: 11,048,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238,681.64 : 18,312,740.62 = 7,383,804.08 : x
  2. Step 2: Convert to fraction form
    12,238,681.64/18,312,740.62 = 7,383,804.08/x
  3. Step 3: Cross multiply
    12,238,681.64x = 18,312,740.62 × 7,383,804.08
  4. Step 4: Simplify right side
    12,238,681.64x = 135,217,688,795,914.52
  5. Step 5: Solve for x
    x = 135,217,688,795,914.52/12,238,681.64
  6. Step 6: Final answer
    x = 11,048,386.81

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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.