Home / 1,186,390,441.71-1,778,339,932.72-399,170,792.81

Finding the Fourth Proportional to 1,186,390,441.71, 1,778,339,932.72 and 399,170,792.81

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Solution

The fourth proportional to 1,186,390,441.71, 1,778,339,932.72 and 399,170,792.81 is: 598,337,053.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,390,441.71 : 1,778,339,932.72 = 399,170,792.81 : x
  2. Step 2: Convert to fraction form
    1,186,390,441.71/1,778,339,932.72 = 399,170,792.81/x
  3. Step 3: Cross multiply
    1,186,390,441.71x = 1,778,339,932.72 × 399,170,792.81
  4. Step 4: Simplify right side
    1,186,390,441.71x = 709,861,360,819,634,816
  5. Step 5: Solve for x
    x = 709,861,360,819,634,816/1,186,390,441.71
  6. Step 6: Final answer
    x = 598,337,053.19

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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.