Home / 80,142,653.70-120,213,980.55-46,130,429.70

Finding the Fourth Proportional to 80,142,653.70, 120,213,980.55 and 46,130,429.70

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Solution

The fourth proportional to 80,142,653.70, 120,213,980.55 and 46,130,429.70 is: 69,195,644.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,142,653.70 : 120,213,980.55 = 46,130,429.70 : x
  2. Step 2: Convert to fraction form
    80,142,653.70/120,213,980.55 = 46,130,429.70/x
  3. Step 3: Cross multiply
    80,142,653.70x = 120,213,980.55 × 46,130,429.70
  4. Step 4: Simplify right side
    80,142,653.70x = 5,545,522,578,718,943
  5. Step 5: Solve for x
    x = 5,545,522,578,718,943/80,142,653.70
  6. Step 6: Final answer
    x = 69,195,644.55

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1.5x scale

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.