Home / 12,648,899,459.25-18,860,264,686.64-12,301,378,741.62

Finding the Fourth Proportional to 12,648,899,459.25, 18,860,264,686.64 and 12,301,378,741.62

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Solution

The fourth proportional to 12,648,899,459.25, 18,860,264,686.64 and 12,301,378,741.62 is: 18,342,090,537.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,648,899,459.25 : 18,860,264,686.64 = 12,301,378,741.62 : x
  2. Step 2: Convert to fraction form
    12,648,899,459.25/18,860,264,686.64 = 12,301,378,741.62/x
  3. Step 3: Cross multiply
    12,648,899,459.25x = 18,860,264,686.64 × 12,301,378,741.62
  4. Step 4: Simplify right side
    12,648,899,459.25x = 232,007,259,077,584,289,792
  5. Step 5: Solve for x
    x = 232,007,259,077,584,289,792/12,648,899,459.25
  6. Step 6: Final answer
    x = 18,342,090,537.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.