Home / 101,189,015.70-139,640,888.45-54,779,269.67

Finding the Fourth Proportional to 101,189,015.70, 139,640,888.45 and 54,779,269.67

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Solution

The fourth proportional to 101,189,015.70, 139,640,888.45 and 54,779,269.67 is: 75,595,417.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,189,015.70 : 139,640,888.45 = 54,779,269.67 : x
  2. Step 2: Convert to fraction form
    101,189,015.70/139,640,888.45 = 54,779,269.67/x
  3. Step 3: Cross multiply
    101,189,015.70x = 139,640,888.45 × 54,779,269.67
  4. Step 4: Simplify right side
    101,189,015.70x = 7,649,425,885,360,938
  5. Step 5: Solve for x
    x = 7,649,425,885,360,938/101,189,015.70
  6. Step 6: Final answer
    x = 75,595,417.47

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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.