Home / 70,425,708.40-105,638,562.60-19,307,645.20

Finding the Fourth Proportional to 70,425,708.40, 105,638,562.60 and 19,307,645.20

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Solution

The fourth proportional to 70,425,708.40, 105,638,562.60 and 19,307,645.20 is: 28,961,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,425,708.40 : 105,638,562.60 = 19,307,645.20 : x
  2. Step 2: Convert to fraction form
    70,425,708.40/105,638,562.60 = 19,307,645.20/x
  3. Step 3: Cross multiply
    70,425,708.40x = 105,638,562.60 × 19,307,645.20
  4. Step 4: Simplify right side
    70,425,708.40x = 2,039,631,886,118,789.25
  5. Step 5: Solve for x
    x = 2,039,631,886,118,789.25/70,425,708.40
  6. Step 6: Final answer
    x = 28,961,467.80

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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.