Home / 31,874,642.40-47,563,360.80-28,439,313.60

Finding the Fourth Proportional to 31,874,642.40, 47,563,360.80 and 28,439,313.60

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Solution

The fourth proportional to 31,874,642.40, 47,563,360.80 and 28,439,313.60 is: 42,437,161.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,874,642.40 : 47,563,360.80 = 28,439,313.60 : x
  2. Step 2: Convert to fraction form
    31,874,642.40/47,563,360.80 = 28,439,313.60/x
  3. Step 3: Cross multiply
    31,874,642.40x = 47,563,360.80 × 28,439,313.60
  4. Step 4: Simplify right side
    31,874,642.40x = 1,352,669,333,661,146.75
  5. Step 5: Solve for x
    x = 1,352,669,333,661,146.75/31,874,642.40
  6. Step 6: Final answer
    x = 42,437,161.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.