Home / 1,175,167,428.78-1,621,730,977.62-646,520,073.82

Finding the Fourth Proportional to 1,175,167,428.78, 1,621,730,977.62 and 646,520,073.82

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Solution

The fourth proportional to 1,175,167,428.78, 1,621,730,977.62 and 646,520,073.82 is: 892,197,661.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,175,167,428.78 : 1,621,730,977.62 = 646,520,073.82 : x
  2. Step 2: Convert to fraction form
    1,175,167,428.78/1,621,730,977.62 = 646,520,073.82/x
  3. Step 3: Cross multiply
    1,175,167,428.78x = 1,621,730,977.62 × 646,520,073.82
  4. Step 4: Simplify right side
    1,175,167,428.78x = 1,048,481,631,367,063,168
  5. Step 5: Solve for x
    x = 1,048,481,631,367,063,168/1,175,167,428.78
  6. Step 6: Final answer
    x = 892,197,661.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.