Home / 13,506,991.79-18,639,654.43-7,312,038.33

Finding the Fourth Proportional to 13,506,991.79, 18,639,654.43 and 7,312,038.33

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Solution

The fourth proportional to 13,506,991.79, 18,639,654.43 and 7,312,038.33 is: 10,090,616.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506,991.79 : 18,639,654.43 = 7,312,038.33 : x
  2. Step 2: Convert to fraction form
    13,506,991.79/18,639,654.43 = 7,312,038.33/x
  3. Step 3: Cross multiply
    13,506,991.79x = 18,639,654.43 × 7,312,038.33
  4. Step 4: Simplify right side
    13,506,991.79x = 136,293,867,650,114.30
  5. Step 5: Solve for x
    x = 136,293,867,650,114.30/13,506,991.79
  6. Step 6: Final answer
    x = 10,090,616.01

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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.