Home / 1,287,615,146.68-1,776,807,593.58-730,698,188.28

Finding the Fourth Proportional to 1,287,615,146.68, 1,776,807,593.58 and 730,698,188.28

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Solution

The fourth proportional to 1,287,615,146.68, 1,776,807,593.58 and 730,698,188.28 is: 1,008,306,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,615,146.68 : 1,776,807,593.58 = 730,698,188.28 : x
  2. Step 2: Convert to fraction form
    1,287,615,146.68/1,776,807,593.58 = 730,698,188.28/x
  3. Step 3: Cross multiply
    1,287,615,146.68x = 1,776,807,593.58 × 730,698,188.28
  4. Step 4: Simplify right side
    1,287,615,146.68x = 1,298,310,089,551,052,544
  5. Step 5: Solve for x
    x = 1,298,310,089,551,052,544/1,287,615,146.68
  6. Step 6: Final answer
    x = 1,008,306,008.90

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1.5x scale

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.