Home / 78,893,210,951.72-118,338,158,451.90-19,202,206,232.36

Finding the Fourth Proportional to 78,893,210,951.72, 118,338,158,451.90 and 19,202,206,232.36

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Solution

The fourth proportional to 78,893,210,951.72, 118,338,158,451.90 and 19,202,206,232.36 is: 28,802,905,805.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,893,210,951.72 : 118,338,158,451.90 = 19,202,206,232.36 : x
  2. Step 2: Convert to fraction form
    78,893,210,951.72/118,338,158,451.90 = 19,202,206,232.36/x
  3. Step 3: Cross multiply
    78,893,210,951.72x = 118,338,158,451.90 × 19,202,206,232.36
  4. Step 4: Simplify right side
    78,893,210,951.72x = 2,272,353,723,751,079,346,176
  5. Step 5: Solve for x
    x = 2,272,353,723,751,079,346,176/78,893,210,951.72
  6. Step 6: Final answer
    x = 28,802,905,805.69

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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.