Home / 767,855,999.60-1,151,783,999.40-492,356,985.20

Finding the Fourth Proportional to 767,855,999.60, 1,151,783,999.40 and 492,356,985.20

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Solution

The fourth proportional to 767,855,999.60, 1,151,783,999.40 and 492,356,985.20 is: 738,535,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,855,999.60 : 1,151,783,999.40 = 492,356,985.20 : x
  2. Step 2: Convert to fraction form
    767,855,999.60/1,151,783,999.40 = 492,356,985.20/x
  3. Step 3: Cross multiply
    767,855,999.60x = 1,151,783,999.40 × 492,356,985.20
  4. Step 4: Simplify right side
    767,855,999.60x = 567,088,897,546,182,656
  5. Step 5: Solve for x
    x = 567,088,897,546,182,656/767,855,999.60
  6. Step 6: Final answer
    x = 738,535,477.80

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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.