Home / 500,021,119.68-690,268,396.32-333,035,275.20

Finding the Fourth Proportional to 500,021,119.68, 690,268,396.32 and 333,035,275.20

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Solution

The fourth proportional to 500,021,119.68, 690,268,396.32 and 333,035,275.20 is: 459,748,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,021,119.68 : 690,268,396.32 = 333,035,275.20 : x
  2. Step 2: Convert to fraction form
    500,021,119.68/690,268,396.32 = 333,035,275.20/x
  3. Step 3: Cross multiply
    500,021,119.68x = 690,268,396.32 × 333,035,275.20
  4. Step 4: Simplify right side
    500,021,119.68x = 229,883,725,330,293,888
  5. Step 5: Solve for x
    x = 229,883,725,330,293,888/500,021,119.68
  6. Step 6: Final answer
    x = 459,748,031.20

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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.