Home / 12,643,245,841.45-18,966,034,541.04-4,134,672,755.55

Finding the Fourth Proportional to 12,643,245,841.45, 18,966,034,541.04 and 4,134,672,755.55

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Solution

The fourth proportional to 12,643,245,841.45, 18,966,034,541.04 and 4,134,672,755.55 is: 6,202,390,373.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643,245,841.45 : 18,966,034,541.04 = 4,134,672,755.55 : x
  2. Step 2: Convert to fraction form
    12,643,245,841.45/18,966,034,541.04 = 4,134,672,755.55/x
  3. Step 3: Cross multiply
    12,643,245,841.45x = 18,966,034,541.04 × 4,134,672,755.55
  4. Step 4: Simplify right side
    12,643,245,841.45x = 78,418,346,297,658,343,424
  5. Step 5: Solve for x
    x = 78,418,346,297,658,343,424/12,643,245,841.45
  6. Step 6: Final answer
    x = 6,202,390,373.57

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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.