Home / 1,520,211,998.73-2,098,112,807.59-851,200,157.43

Finding the Fourth Proportional to 1,520,211,998.73, 2,098,112,807.59 and 851,200,157.43

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Solution

The fourth proportional to 1,520,211,998.73, 2,098,112,807.59 and 851,200,157.43 is: 1,174,779,539.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,211,998.73 : 2,098,112,807.59 = 851,200,157.43 : x
  2. Step 2: Convert to fraction form
    1,520,211,998.73/2,098,112,807.59 = 851,200,157.43/x
  3. Step 3: Cross multiply
    1,520,211,998.73x = 2,098,112,807.59 × 851,200,157.43
  4. Step 4: Simplify right side
    1,520,211,998.73x = 1,785,913,952,127,255,552
  5. Step 5: Solve for x
    x = 1,785,913,952,127,255,552/1,520,211,998.73
  6. Step 6: Final answer
    x = 1,174,779,539.71

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Double scale
Find fourth proportional to 1,520,211,999.73, 2,098,112,808.97 and 851,200,158.43
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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.