Home / 314,928,736.40-472,896,989.40-213,144,006.80

Finding the Fourth Proportional to 314,928,736.40, 472,896,989.40 and 213,144,006.80

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Solution

The fourth proportional to 314,928,736.40, 472,896,989.40 and 213,144,006.80 is: 320,057,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,736.40 : 472,896,989.40 = 213,144,006.80 : x
  2. Step 2: Convert to fraction form
    314,928,736.40/472,896,989.40 = 213,144,006.80/x
  3. Step 3: Cross multiply
    314,928,736.40x = 472,896,989.40 × 213,144,006.80
  4. Step 4: Simplify right side
    314,928,736.40x = 100,795,159,124,373,136
  5. Step 5: Solve for x
    x = 100,795,159,124,373,136/314,928,736.40
  6. Step 6: Final answer
    x = 320,057,039.81

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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.