Home / 1,921,340,155.81-2,881,444,861.41-871,470,980.77

Finding the Fourth Proportional to 1,921,340,155.81, 2,881,444,861.41 and 871,470,980.77

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Solution

The fourth proportional to 1,921,340,155.81, 2,881,444,861.41 and 871,470,980.77 is: 1,306,950,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,340,155.81 : 2,881,444,861.41 = 871,470,980.77 : x
  2. Step 2: Convert to fraction form
    1,921,340,155.81/2,881,444,861.41 = 871,470,980.77/x
  3. Step 3: Cross multiply
    1,921,340,155.81x = 2,881,444,861.41 × 871,470,980.77
  4. Step 4: Simplify right side
    1,921,340,155.81x = 2,511,095,579,407,649,280
  5. Step 5: Solve for x
    x = 2,511,095,579,407,649,280/1,921,340,155.81
  6. Step 6: Final answer
    x = 1,306,950,032.67

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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.