Home / 1,091,788,232.80-1,638,130,246.80-402,025,928.80

Finding the Fourth Proportional to 1,091,788,232.80, 1,638,130,246.80 and 402,025,928.80

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Solution

The fourth proportional to 1,091,788,232.80, 1,638,130,246.80 and 402,025,928.80 is: 603,203,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,788,232.80 : 1,638,130,246.80 = 402,025,928.80 : x
  2. Step 2: Convert to fraction form
    1,091,788,232.80/1,638,130,246.80 = 402,025,928.80/x
  3. Step 3: Cross multiply
    1,091,788,232.80x = 1,638,130,246.80 × 402,025,928.80
  4. Step 4: Simplify right side
    1,091,788,232.80x = 658,570,833,965,143,168
  5. Step 5: Solve for x
    x = 658,570,833,965,143,168/1,091,788,232.80
  6. Step 6: Final answer
    x = 603,203,821.20

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Double scale
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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.