Home / 28,232,018.10-42,348,027.15-21,057,564.60

Finding the Fourth Proportional to 28,232,018.10, 42,348,027.15 and 21,057,564.60

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Solution

The fourth proportional to 28,232,018.10, 42,348,027.15 and 21,057,564.60 is: 31,586,346.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,232,018.10 : 42,348,027.15 = 21,057,564.60 : x
  2. Step 2: Convert to fraction form
    28,232,018.10/42,348,027.15 = 21,057,564.60/x
  3. Step 3: Cross multiply
    28,232,018.10x = 42,348,027.15 × 21,057,564.60
  4. Step 4: Simplify right side
    28,232,018.10x = 891,746,317,393,678.88
  5. Step 5: Solve for x
    x = 891,746,317,393,678.88/28,232,018.10
  6. Step 6: Final answer
    x = 31,586,346.90

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Similar ratio
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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.