Home / 218,977,961.72-328,425,081.77-65,624,018.15

Finding the Fourth Proportional to 218,977,961.72, 328,425,081.77 and 65,624,018.15

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Solution

The fourth proportional to 218,977,961.72, 328,425,081.77 and 65,624,018.15 is: 98,423,482.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,977,961.72 : 328,425,081.77 = 65,624,018.15 : x
  2. Step 2: Convert to fraction form
    218,977,961.72/328,425,081.77 = 65,624,018.15/x
  3. Step 3: Cross multiply
    218,977,961.72x = 328,425,081.77 × 65,624,018.15
  4. Step 4: Simplify right side
    218,977,961.72x = 21,552,573,527,974,836
  5. Step 5: Solve for x
    x = 21,552,573,527,974,836/218,977,961.72
  6. Step 6: Final answer
    x = 98,423,482.25

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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.