Home / 101,189,007.90-139,640,877.90-54,779,261.76

Finding the Fourth Proportional to 101,189,007.90, 139,640,877.90 and 54,779,261.76

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Solution

The fourth proportional to 101,189,007.90, 139,640,877.90 and 54,779,261.76 is: 75,595,406.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,189,007.90 : 139,640,877.90 = 54,779,261.76 : x
  2. Step 2: Convert to fraction form
    101,189,007.90/139,640,877.90 = 54,779,261.76/x
  3. Step 3: Cross multiply
    101,189,007.90x = 139,640,877.90 × 54,779,261.76
  4. Step 4: Simplify right side
    101,189,007.90x = 7,649,424,202,880,299
  5. Step 5: Solve for x
    x = 7,649,424,202,880,299/101,189,007.90
  6. Step 6: Final answer
    x = 75,595,406.67

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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.