Home / 13,838,065.65-20,778,430.43-11,707,091.12

Finding the Fourth Proportional to 13,838,065.65, 20,778,430.43 and 11,707,091.12

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Solution

The fourth proportional to 13,838,065.65, 20,778,430.43 and 11,707,091.12 is: 17,578,683.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838,065.65 : 20,778,430.43 = 11,707,091.12 : x
  2. Step 2: Convert to fraction form
    13,838,065.65/20,778,430.43 = 11,707,091.12/x
  3. Step 3: Cross multiply
    13,838,065.65x = 20,778,430.43 × 11,707,091.12
  4. Step 4: Simplify right side
    13,838,065.65x = 243,254,978,455,804.59
  5. Step 5: Solve for x
    x = 243,254,978,455,804.59/13,838,065.65
  6. Step 6: Final answer
    x = 17,578,683.65

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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.