Home / 811,147,557.36-1,119,383,926.72-439,869,490.32

Finding the Fourth Proportional to 811,147,557.36, 1,119,383,926.72 and 439,869,490.32

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Solution

The fourth proportional to 811,147,557.36, 1,119,383,926.72 and 439,869,490.32 is: 607,020,058.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,147,557.36 : 1,119,383,926.72 = 439,869,490.32 : x
  2. Step 2: Convert to fraction form
    811,147,557.36/1,119,383,926.72 = 439,869,490.32/x
  3. Step 3: Cross multiply
    811,147,557.36x = 1,119,383,926.72 × 439,869,490.32
  4. Step 4: Simplify right side
    811,147,557.36x = 492,382,837,318,726,656
  5. Step 5: Solve for x
    x = 492,382,837,318,726,656/811,147,557.36
  6. Step 6: Final answer
    x = 607,020,058.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.