Home / 218,977,963.47-328,425,084.40-65,624,019.90

Finding the Fourth Proportional to 218,977,963.47, 328,425,084.40 and 65,624,019.90

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Solution

The fourth proportional to 218,977,963.47, 328,425,084.40 and 65,624,019.90 is: 98,423,484.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,977,963.47 : 328,425,084.40 = 65,624,019.90 : x
  2. Step 2: Convert to fraction form
    218,977,963.47/328,425,084.40 = 65,624,019.90/x
  3. Step 3: Cross multiply
    218,977,963.47x = 328,425,084.40 × 65,624,019.90
  4. Step 4: Simplify right side
    218,977,963.47x = 21,552,574,274,324,776
  5. Step 5: Solve for x
    x = 21,552,574,274,324,776/218,977,963.47
  6. Step 6: Final answer
    x = 98,423,484.87

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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.