Home / 218,907,647.30-328,144,894.95-103,689,676.10

Finding the Fourth Proportional to 218,907,647.30, 328,144,894.95 and 103,689,676.10

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Solution

The fourth proportional to 218,907,647.30, 328,144,894.95 and 103,689,676.10 is: 155,431,928.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,907,647.30 : 328,144,894.95 = 103,689,676.10 : x
  2. Step 2: Convert to fraction form
    218,907,647.30/328,144,894.95 = 103,689,676.10/x
  3. Step 3: Cross multiply
    218,907,647.30x = 328,144,894.95 × 103,689,676.10
  4. Step 4: Simplify right side
    218,907,647.30x = 34,025,237,871,234,024
  5. Step 5: Solve for x
    x = 34,025,237,871,234,024/218,907,647.30
  6. Step 6: Final answer
    x = 155,431,928.90

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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.