Home / 1,129,925,268.64-1,694,919,709.20-312,037,569.76

Finding the Fourth Proportional to 1,129,925,268.64, 1,694,919,709.20 and 312,037,569.76

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Solution

The fourth proportional to 1,129,925,268.64, 1,694,919,709.20 and 312,037,569.76 is: 468,065,138.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,925,268.64 : 1,694,919,709.20 = 312,037,569.76 : x
  2. Step 2: Convert to fraction form
    1,129,925,268.64/1,694,919,709.20 = 312,037,569.76/x
  3. Step 3: Cross multiply
    1,129,925,268.64x = 1,694,919,709.20 × 312,037,569.76
  4. Step 4: Simplify right side
    1,129,925,268.64x = 528,878,626,997,093,888
  5. Step 5: Solve for x
    x = 528,878,626,997,093,888/1,129,925,268.64
  6. Step 6: Final answer
    x = 468,065,138.18

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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.