Home / 45,349,700,428.80-68,024,550,643.20-20,507,172,019.20

Finding the Fourth Proportional to 45,349,700,428.80, 68,024,550,643.20 and 20,507,172,019.20

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Solution

The fourth proportional to 45,349,700,428.80, 68,024,550,643.20 and 20,507,172,019.20 is: 30,760,758,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,349,700,428.80 : 68,024,550,643.20 = 20,507,172,019.20 : x
  2. Step 2: Convert to fraction form
    45,349,700,428.80/68,024,550,643.20 = 20,507,172,019.20/x
  3. Step 3: Cross multiply
    45,349,700,428.80x = 68,024,550,643.20 × 20,507,172,019.20
  4. Step 4: Simplify right side
    45,349,700,428.80x = 1,394,991,161,568,884,424,704
  5. Step 5: Solve for x
    x = 1,394,991,161,568,884,424,704/45,349,700,428.80
  6. Step 6: Final answer
    x = 30,760,758,028.80

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1.5x scale

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.