Home / 5,179,283,653.39-7,147,117,981.43-2,921,088,209.85

Finding the Fourth Proportional to 5,179,283,653.39, 7,147,117,981.43 and 2,921,088,209.85

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Solution

The fourth proportional to 5,179,283,653.39, 7,147,117,981.43 and 2,921,088,209.85 is: 4,030,936,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179,283,653.39 : 7,147,117,981.43 = 2,921,088,209.85 : x
  2. Step 2: Convert to fraction form
    5,179,283,653.39/7,147,117,981.43 = 2,921,088,209.85/x
  3. Step 3: Cross multiply
    5,179,283,653.39x = 7,147,117,981.43 × 2,921,088,209.85
  4. Step 4: Simplify right side
    5,179,283,653.39x = 20,877,362,069,969,403,904
  5. Step 5: Solve for x
    x = 20,877,362,069,969,403,904/5,179,283,653.39
  6. Step 6: Final answer
    x = 4,030,936,219.59

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1.5x scale

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.