Home / 118,938,209.85-178,582,447.89-66,518,583.30

Finding the Fourth Proportional to 118,938,209.85, 178,582,447.89 and 66,518,583.30

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Solution

The fourth proportional to 118,938,209.85, 178,582,447.89 and 66,518,583.30 is: 99,875,821.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,938,209.85 : 178,582,447.89 = 66,518,583.30 : x
  2. Step 2: Convert to fraction form
    118,938,209.85/178,582,447.89 = 66,518,583.30/x
  3. Step 3: Cross multiply
    118,938,209.85x = 178,582,447.89 × 66,518,583.30
  4. Step 4: Simplify right side
    118,938,209.85x = 11,879,051,435,888,872
  5. Step 5: Solve for x
    x = 11,879,051,435,888,872/118,938,209.85
  6. Step 6: Final answer
    x = 99,875,821.66

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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.