Home / 91,896,360.80-137,844,541.20-40,783,546.40

Finding the Fourth Proportional to 91,896,360.80, 137,844,541.20 and 40,783,546.40

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Solution

The fourth proportional to 91,896,360.80, 137,844,541.20 and 40,783,546.40 is: 61,175,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,896,360.80 : 137,844,541.20 = 40,783,546.40 : x
  2. Step 2: Convert to fraction form
    91,896,360.80/137,844,541.20 = 40,783,546.40/x
  3. Step 3: Cross multiply
    91,896,360.80x = 137,844,541.20 × 40,783,546.40
  4. Step 4: Simplify right side
    91,896,360.80x = 5,621,789,242,016,911
  5. Step 5: Solve for x
    x = 5,621,789,242,016,911/91,896,360.80
  6. Step 6: Final answer
    x = 61,175,319.60

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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.