Home / 21,243,790,965.04-29,329,662,052.46-13,523,218,400.56

Finding the Fourth Proportional to 21,243,790,965.04, 29,329,662,052.46 and 13,523,218,400.56

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Solution

The fourth proportional to 21,243,790,965.04, 29,329,662,052.46 and 13,523,218,400.56 is: 18,670,463,581.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243,790,965.04 : 29,329,662,052.46 = 13,523,218,400.56 : x
  2. Step 2: Convert to fraction form
    21,243,790,965.04/29,329,662,052.46 = 13,523,218,400.56/x
  3. Step 3: Cross multiply
    21,243,790,965.04x = 29,329,662,052.46 × 13,523,218,400.56
  4. Step 4: Simplify right side
    21,243,790,965.04x = 396,631,425,550,033,420,288
  5. Step 5: Solve for x
    x = 396,631,425,550,033,420,288/21,243,790,965.04
  6. Step 6: Final answer
    x = 18,670,463,581.70

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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.