Home / 1,490,184,861.01-2,056,498,974.70-821,173,001.33

Finding the Fourth Proportional to 1,490,184,861.01, 2,056,498,974.70 and 821,173,001.33

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Solution

The fourth proportional to 1,490,184,861.01, 2,056,498,974.70 and 821,173,001.33 is: 1,133,242,914.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,184,861.01 : 2,056,498,974.70 = 821,173,001.33 : x
  2. Step 2: Convert to fraction form
    1,490,184,861.01/2,056,498,974.70 = 821,173,001.33/x
  3. Step 3: Cross multiply
    1,490,184,861.01x = 2,056,498,974.70 × 821,173,001.33
  4. Step 4: Simplify right side
    1,490,184,861.01x = 1,688,741,435,289,473,024
  5. Step 5: Solve for x
    x = 1,688,741,435,289,473,024/1,490,184,861.01
  6. Step 6: Final answer
    x = 1,133,242,914.67

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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.