Home / 1,005,293,999.60-1,505,142,076.80-512,943,437.60

Finding the Fourth Proportional to 1,005,293,999.60, 1,505,142,076.80 and 512,943,437.60

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Solution

The fourth proportional to 1,005,293,999.60, 1,505,142,076.80 and 512,943,437.60 is: 767,987,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,293,999.60 : 1,505,142,076.80 = 512,943,437.60 : x
  2. Step 2: Convert to fraction form
    1,005,293,999.60/1,505,142,076.80 = 512,943,437.60/x
  3. Step 3: Cross multiply
    1,005,293,999.60x = 1,505,142,076.80 × 512,943,437.60
  4. Step 4: Simplify right side
    1,005,293,999.60x = 772,052,750,950,195,200
  5. Step 5: Solve for x
    x = 772,052,750,950,195,200/1,005,293,999.60
  6. Step 6: Final answer
    x = 767,987,027.93

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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.