Home / 78,683,546.30-118,025,319.45-73,896,640.70

Finding the Fourth Proportional to 78,683,546.30, 118,025,319.45 and 73,896,640.70

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Solution

The fourth proportional to 78,683,546.30, 118,025,319.45 and 73,896,640.70 is: 110,844,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,683,546.30 : 118,025,319.45 = 73,896,640.70 : x
  2. Step 2: Convert to fraction form
    78,683,546.30/118,025,319.45 = 73,896,640.70/x
  3. Step 3: Cross multiply
    78,683,546.30x = 118,025,319.45 × 73,896,640.70
  4. Step 4: Simplify right side
    78,683,546.30x = 8,721,674,624,899,372
  5. Step 5: Solve for x
    x = 8,721,674,624,899,372/78,683,546.30
  6. Step 6: Final answer
    x = 110,844,961.05

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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.