Home / 328,954,981.30-493,243,515.15-98,889,579.70

Finding the Fourth Proportional to 328,954,981.30, 493,243,515.15 and 98,889,579.70

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Solution

The fourth proportional to 328,954,981.30, 493,243,515.15 and 98,889,579.70 is: 148,277,565.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,954,981.30 : 493,243,515.15 = 98,889,579.70 : x
  2. Step 2: Convert to fraction form
    328,954,981.30/493,243,515.15 = 98,889,579.70/x
  3. Step 3: Cross multiply
    328,954,981.30x = 493,243,515.15 × 98,889,579.70
  4. Step 4: Simplify right side
    328,954,981.30x = 48,776,643,902,934,080
  5. Step 5: Solve for x
    x = 48,776,643,902,934,080/328,954,981.30
  6. Step 6: Final answer
    x = 148,277,565.85

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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.