Home / 13,618,138.84-18,793,027.02-7,506,669.40

Finding the Fourth Proportional to 13,618,138.84, 18,793,027.02 and 7,506,669.40

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Solution

The fourth proportional to 13,618,138.84, 18,793,027.02 and 7,506,669.40 is: 10,359,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618,138.84 : 18,793,027.02 = 7,506,669.40 : x
  2. Step 2: Convert to fraction form
    13,618,138.84/18,793,027.02 = 7,506,669.40/x
  3. Step 3: Cross multiply
    13,618,138.84x = 18,793,027.02 × 7,506,669.40
  4. Step 4: Simplify right side
    13,618,138.84x = 141,073,040,864,407.19
  5. Step 5: Solve for x
    x = 141,073,040,864,407.19/13,618,138.84
  6. Step 6: Final answer
    x = 10,359,201.25

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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.