Home / 218,508,371.40-327,762,557.10-208,430,675.40

Finding the Fourth Proportional to 218,508,371.40, 327,762,557.10 and 208,430,675.40

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Solution

The fourth proportional to 218,508,371.40, 327,762,557.10 and 208,430,675.40 is: 312,646,013.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,508,371.40 : 327,762,557.10 = 208,430,675.40 : x
  2. Step 2: Convert to fraction form
    218,508,371.40/327,762,557.10 = 208,430,675.40/x
  3. Step 3: Cross multiply
    218,508,371.40x = 327,762,557.10 × 208,430,675.40
  4. Step 4: Simplify right side
    218,508,371.40x = 68,315,771,147,184,072
  5. Step 5: Solve for x
    x = 68,315,771,147,184,072/218,508,371.40
  6. Step 6: Final answer
    x = 312,646,013.10

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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.