Home / 989,010,415.80-1,483,515,623.70-932,575,318.20

Finding the Fourth Proportional to 989,010,415.80, 1,483,515,623.70 and 932,575,318.20

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Solution

The fourth proportional to 989,010,415.80, 1,483,515,623.70 and 932,575,318.20 is: 1,398,862,977.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,010,415.80 : 1,483,515,623.70 = 932,575,318.20 : x
  2. Step 2: Convert to fraction form
    989,010,415.80/1,483,515,623.70 = 932,575,318.20/x
  3. Step 3: Cross multiply
    989,010,415.80x = 1,483,515,623.70 × 932,575,318.20
  4. Step 4: Simplify right side
    989,010,415.80x = 1,383,490,054,826,699,008
  5. Step 5: Solve for x
    x = 1,383,490,054,826,699,008/989,010,415.80
  6. Step 6: Final answer
    x = 1,398,862,977.30

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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.