Home / 201,480,012.80-302,220,019.20-157,642,035.20

Finding the Fourth Proportional to 201,480,012.80, 302,220,019.20 and 157,642,035.20

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Solution

The fourth proportional to 201,480,012.80, 302,220,019.20 and 157,642,035.20 is: 236,463,052.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,480,012.80 : 302,220,019.20 = 157,642,035.20 : x
  2. Step 2: Convert to fraction form
    201,480,012.80/302,220,019.20 = 157,642,035.20/x
  3. Step 3: Cross multiply
    201,480,012.80x = 302,220,019.20 × 157,642,035.20
  4. Step 4: Simplify right side
    201,480,012.80x = 47,642,578,904,871,072
  5. Step 5: Solve for x
    x = 47,642,578,904,871,072/201,480,012.80
  6. Step 6: Final answer
    x = 236,463,052.80

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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.