Home / 70,979,438.25-106,458,478.32-19,854,830.25

Finding the Fourth Proportional to 70,979,438.25, 106,458,478.32 and 19,854,830.25

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Solution

The fourth proportional to 70,979,438.25, 106,458,478.32 and 19,854,830.25 is: 29,779,258.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,979,438.25 : 106,458,478.32 = 19,854,830.25 : x
  2. Step 2: Convert to fraction form
    70,979,438.25/106,458,478.32 = 19,854,830.25/x
  3. Step 3: Cross multiply
    70,979,438.25x = 106,458,478.32 × 19,854,830.25
  4. Step 4: Simplify right side
    70,979,438.25x = 2,113,715,015,716,905
  5. Step 5: Solve for x
    x = 2,113,715,015,716,905/70,979,438.25
  6. Step 6: Final answer
    x = 29,779,258.16

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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.