Home / 312,783,280.01-431,640,927.42-173,576,443.49

Finding the Fourth Proportional to 312,783,280.01, 431,640,927.42 and 173,576,443.49

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Solution

The fourth proportional to 312,783,280.01, 431,640,927.42 and 173,576,443.49 is: 239,535,492.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,783,280.01 : 431,640,927.42 = 173,576,443.49 : x
  2. Step 2: Convert to fraction form
    312,783,280.01/431,640,927.42 = 173,576,443.49/x
  3. Step 3: Cross multiply
    312,783,280.01x = 431,640,927.42 × 173,576,443.49
  4. Step 4: Simplify right side
    312,783,280.01x = 74,922,697,043,262,752
  5. Step 5: Solve for x
    x = 74,922,697,043,262,752/312,783,280.01
  6. Step 6: Final answer
    x = 239,535,492.57

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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.