Home / 989,190,855.45-1,483,791,401.70-579,960,027.81

Finding the Fourth Proportional to 989,190,855.45, 1,483,791,401.70 and 579,960,027.81

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Solution

The fourth proportional to 989,190,855.45, 1,483,791,401.70 and 579,960,027.81 is: 869,943,042.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,190,855.45 : 1,483,791,401.70 = 579,960,027.81 : x
  2. Step 2: Convert to fraction form
    989,190,855.45/1,483,791,401.70 = 579,960,027.81/x
  3. Step 3: Cross multiply
    989,190,855.45x = 1,483,791,401.70 × 579,960,027.81
  4. Step 4: Simplify right side
    989,190,855.45x = 860,539,702,594,170,880
  5. Step 5: Solve for x
    x = 860,539,702,594,170,880/989,190,855.45
  6. Step 6: Final answer
    x = 869,943,042.69

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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.