Home / 12,515,271,147.63-18,772,913,462.67-4,653,661,949.55

Finding the Fourth Proportional to 12,515,271,147.63, 18,772,913,462.67 and 4,653,661,949.55

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Solution

The fourth proportional to 12,515,271,147.63, 18,772,913,462.67 and 4,653,661,949.55 is: 6,980,495,430.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515,271,147.63 : 18,772,913,462.67 = 4,653,661,949.55 : x
  2. Step 2: Convert to fraction form
    12,515,271,147.63/18,772,913,462.67 = 4,653,661,949.55/x
  3. Step 3: Cross multiply
    12,515,271,147.63x = 18,772,913,462.67 × 4,653,661,949.55
  4. Step 4: Simplify right side
    12,515,271,147.63x = 87,362,793,063,422,312,448
  5. Step 5: Solve for x
    x = 87,362,793,063,422,312,448/12,515,271,147.63
  6. Step 6: Final answer
    x = 6,980,495,430.97

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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.