Home / 145,156,959.40-217,436,840.70-73,393,810.60

Finding the Fourth Proportional to 145,156,959.40, 217,436,840.70 and 73,393,810.60

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Solution

The fourth proportional to 145,156,959.40, 217,436,840.70 and 73,393,810.60 is: 109,939,739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,959.40 : 217,436,840.70 = 73,393,810.60 : x
  2. Step 2: Convert to fraction form
    145,156,959.40/217,436,840.70 = 73,393,810.60/x
  3. Step 3: Cross multiply
    145,156,959.40x = 217,436,840.70 × 73,393,810.60
  4. Step 4: Simplify right side
    145,156,959.40x = 15,958,518,303,798,170
  5. Step 5: Solve for x
    x = 15,958,518,303,798,170/145,156,959.40
  6. Step 6: Final answer
    x = 109,939,739.51

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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.