Home / 7,401,395,130.74-11,100,901,407.15-2,159,772,689.78

Finding the Fourth Proportional to 7,401,395,130.74, 11,100,901,407.15 and 2,159,772,689.78

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Solution

The fourth proportional to 7,401,395,130.74, 11,100,901,407.15 and 2,159,772,689.78 is: 3,239,311,409.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,401,395,130.74 : 11,100,901,407.15 = 2,159,772,689.78 : x
  2. Step 2: Convert to fraction form
    7,401,395,130.74/11,100,901,407.15 = 2,159,772,689.78/x
  3. Step 3: Cross multiply
    7,401,395,130.74x = 11,100,901,407.15 × 2,159,772,689.78
  4. Step 4: Simplify right side
    7,401,395,130.74x = 23,975,423,691,102,945,280
  5. Step 5: Solve for x
    x = 23,975,423,691,102,945,280/7,401,395,130.74
  6. Step 6: Final answer
    x = 3,239,311,409.21

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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.