Home / 21,212,745,869.36-31,824,523,559.04-6,290,456,545.68

Finding the Fourth Proportional to 21,212,745,869.36, 31,824,523,559.04 and 6,290,456,545.68

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Solution

The fourth proportional to 21,212,745,869.36, 31,824,523,559.04 and 6,290,456,545.68 is: 9,437,287,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,745,869.36 : 31,824,523,559.04 = 6,290,456,545.68 : x
  2. Step 2: Convert to fraction form
    21,212,745,869.36/31,824,523,559.04 = 6,290,456,545.68/x
  3. Step 3: Cross multiply
    21,212,745,869.36x = 31,824,523,559.04 × 6,290,456,545.68
  4. Step 4: Simplify right side
    21,212,745,869.36x = 200,190,782,535,110,557,696
  5. Step 5: Solve for x
    x = 200,190,782,535,110,557,696/21,212,745,869.36
  6. Step 6: Final answer
    x = 9,437,287,551.93

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1.5x scale

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.