Home / 19,858,991,985.60-29,788,487,978.40-8,805,775,012.80

Finding the Fourth Proportional to 19,858,991,985.60, 29,788,487,978.40 and 8,805,775,012.80

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Solution

The fourth proportional to 19,858,991,985.60, 29,788,487,978.40 and 8,805,775,012.80 is: 13,208,662,519.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858,991,985.60 : 29,788,487,978.40 = 8,805,775,012.80 : x
  2. Step 2: Convert to fraction form
    19,858,991,985.60/29,788,487,978.40 = 8,805,775,012.80/x
  3. Step 3: Cross multiply
    19,858,991,985.60x = 29,788,487,978.40 × 8,805,775,012.80
  4. Step 4: Simplify right side
    19,858,991,985.60x = 262,310,723,109,287,886,848
  5. Step 5: Solve for x
    x = 262,310,723,109,287,886,848/19,858,991,985.60
  6. Step 6: Final answer
    x = 13,208,662,519.20

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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.