Home / 989,477,061.40-1,484,383,553.70-299,378,834.20

Finding the Fourth Proportional to 989,477,061.40, 1,484,383,553.70 and 299,378,834.20

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Solution

The fourth proportional to 989,477,061.40, 1,484,383,553.70 and 299,378,834.20 is: 449,119,070.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,477,061.40 : 1,484,383,553.70 = 299,378,834.20 : x
  2. Step 2: Convert to fraction form
    989,477,061.40/1,484,383,553.70 = 299,378,834.20/x
  3. Step 3: Cross multiply
    989,477,061.40x = 1,484,383,553.70 × 299,378,834.20
  4. Step 4: Simplify right side
    989,477,061.40x = 444,393,017,812,359,104
  5. Step 5: Solve for x
    x = 444,393,017,812,359,104/989,477,061.40
  6. Step 6: Final answer
    x = 449,119,070.21

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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.