Home / 1,407,004,003.60-2,110,506,005.40-681,409,891.60

Finding the Fourth Proportional to 1,407,004,003.60, 2,110,506,005.40 and 681,409,891.60

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Solution

The fourth proportional to 1,407,004,003.60, 2,110,506,005.40 and 681,409,891.60 is: 1,022,114,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,004,003.60 : 2,110,506,005.40 = 681,409,891.60 : x
  2. Step 2: Convert to fraction form
    1,407,004,003.60/2,110,506,005.40 = 681,409,891.60/x
  3. Step 3: Cross multiply
    1,407,004,003.60x = 2,110,506,005.40 × 681,409,891.60
  4. Step 4: Simplify right side
    1,407,004,003.60x = 1,438,119,668,360,763,136
  5. Step 5: Solve for x
    x = 1,438,119,668,360,763,136/1,407,004,003.60
  6. Step 6: Final answer
    x = 1,022,114,837.40

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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.