Home / 1,259,714,890.40-1,889,572,335.60-708,716,861.60

Finding the Fourth Proportional to 1,259,714,890.40, 1,889,572,335.60 and 708,716,861.60

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Solution

The fourth proportional to 1,259,714,890.40, 1,889,572,335.60 and 708,716,861.60 is: 1,063,075,292.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,714,890.40 : 1,889,572,335.60 = 708,716,861.60 : x
  2. Step 2: Convert to fraction form
    1,259,714,890.40/1,889,572,335.60 = 708,716,861.60/x
  3. Step 3: Cross multiply
    1,259,714,890.40x = 1,889,572,335.60 × 708,716,861.60
  4. Step 4: Simplify right side
    1,259,714,890.40x = 1,339,171,775,452,613,888
  5. Step 5: Solve for x
    x = 1,339,171,775,452,613,888/1,259,714,890.40
  6. Step 6: Final answer
    x = 1,063,075,292.40

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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.