Home / 659,628,729.87-910,284,126.23-358,211,406.71

Finding the Fourth Proportional to 659,628,729.87, 910,284,126.23 and 358,211,406.71

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Solution

The fourth proportional to 659,628,729.87, 910,284,126.23 and 358,211,406.71 is: 494,329,829.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,628,729.87 : 910,284,126.23 = 358,211,406.71 : x
  2. Step 2: Convert to fraction form
    659,628,729.87/910,284,126.23 = 358,211,406.71/x
  3. Step 3: Cross multiply
    659,628,729.87x = 910,284,126.23 × 358,211,406.71
  4. Step 4: Simplify right side
    659,628,729.87x = 326,074,157,363,116,160
  5. Step 5: Solve for x
    x = 326,074,157,363,116,160/659,628,729.87
  6. Step 6: Final answer
    x = 494,329,829.19

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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.