Home / 19,931,288,435.64-27,492,217,941.96-12,783,380,413.50

Finding the Fourth Proportional to 19,931,288,435.64, 27,492,217,941.96 and 12,783,380,413.50

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Solution

The fourth proportional to 19,931,288,435.64, 27,492,217,941.96 and 12,783,380,413.50 is: 17,632,752,719.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931,288,435.64 : 27,492,217,941.96 = 12,783,380,413.50 : x
  2. Step 2: Convert to fraction form
    19,931,288,435.64/27,492,217,941.96 = 12,783,380,413.50/x
  3. Step 3: Cross multiply
    19,931,288,435.64x = 27,492,217,941.96 × 12,783,380,413.50
  4. Step 4: Simplify right side
    19,931,288,435.64x = 351,443,480,362,924,703,744
  5. Step 5: Solve for x
    x = 351,443,480,362,924,703,744/19,931,288,435.64
  6. Step 6: Final answer
    x = 17,632,752,719.31

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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.