Home / 13,301,938.74-18,361,667.07-8,718,555.36

Finding the Fourth Proportional to 13,301,938.74, 18,361,667.07 and 8,718,555.36

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Solution

The fourth proportional to 13,301,938.74, 18,361,667.07 and 8,718,555.36 is: 12,034,878.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301,938.74 : 18,361,667.07 = 8,718,555.36 : x
  2. Step 2: Convert to fraction form
    13,301,938.74/18,361,667.07 = 8,718,555.36/x
  3. Step 3: Cross multiply
    13,301,938.74x = 18,361,667.07 × 8,718,555.36
  4. Step 4: Simplify right side
    13,301,938.74x = 160,087,210,851,684
  5. Step 5: Solve for x
    x = 160,087,210,851,684/13,301,938.74
  6. Step 6: Final answer
    x = 12,034,878.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.