Home / 869,807,495.37-1,200,334,521.33-478,666,919.37

Finding the Fourth Proportional to 869,807,495.37, 1,200,334,521.33 and 478,666,919.37

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Solution

The fourth proportional to 869,807,495.37, 1,200,334,521.33 and 478,666,919.37 is: 660,560,446.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,807,495.37 : 1,200,334,521.33 = 478,666,919.37 : x
  2. Step 2: Convert to fraction form
    869,807,495.37/1,200,334,521.33 = 478,666,919.37/x
  3. Step 3: Cross multiply
    869,807,495.37x = 1,200,334,521.33 × 478,666,919.37
  4. Step 4: Simplify right side
    869,807,495.37x = 574,560,427,538,494,656
  5. Step 5: Solve for x
    x = 574,560,427,538,494,656/869,807,495.37
  6. Step 6: Final answer
    x = 660,560,446.53

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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.