Home / 1,586,446,875.60-2,379,670,313.40-421,913,115.60

Finding the Fourth Proportional to 1,586,446,875.60, 2,379,670,313.40 and 421,913,115.60

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Solution

The fourth proportional to 1,586,446,875.60, 2,379,670,313.40 and 421,913,115.60 is: 632,869,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,446,875.60 : 2,379,670,313.40 = 421,913,115.60 : x
  2. Step 2: Convert to fraction form
    1,586,446,875.60/2,379,670,313.40 = 421,913,115.60/x
  3. Step 3: Cross multiply
    1,586,446,875.60x = 2,379,670,313.40 × 421,913,115.60
  4. Step 4: Simplify right side
    1,586,446,875.60x = 1,004,014,116,027,422,464
  5. Step 5: Solve for x
    x = 1,004,014,116,027,422,464/1,586,446,875.60
  6. Step 6: Final answer
    x = 632,869,673.40

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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.