Home / 12,483,115,048.92-18,721,807,242.54-7,442,397,820.02

Finding the Fourth Proportional to 12,483,115,048.92, 18,721,807,242.54 and 7,442,397,820.02

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Solution

The fourth proportional to 12,483,115,048.92, 18,721,807,242.54 and 7,442,397,820.02 is: 11,161,888,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483,115,048.92 : 18,721,807,242.54 = 7,442,397,820.02 : x
  2. Step 2: Convert to fraction form
    12,483,115,048.92/18,721,807,242.54 = 7,442,397,820.02/x
  3. Step 3: Cross multiply
    12,483,115,048.92x = 18,721,807,242.54 × 7,442,397,820.02
  4. Step 4: Simplify right side
    12,483,115,048.92x = 139,335,137,408,714,358,784
  5. Step 5: Solve for x
    x = 139,335,137,408,714,358,784/12,483,115,048.92
  6. Step 6: Final answer
    x = 11,161,888,427.90

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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.