Home / 670,334,458.85-925,047,028.73-388,088,792.45

Finding the Fourth Proportional to 670,334,458.85, 925,047,028.73 and 388,088,792.45

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Solution

The fourth proportional to 670,334,458.85, 925,047,028.73 and 388,088,792.45 is: 535,554,124.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,334,458.85 : 925,047,028.73 = 388,088,792.45 : x
  2. Step 2: Convert to fraction form
    670,334,458.85/925,047,028.73 = 388,088,792.45/x
  3. Step 3: Cross multiply
    670,334,458.85x = 925,047,028.73 × 388,088,792.45
  4. Step 4: Simplify right side
    670,334,458.85x = 359,000,384,337,345,728
  5. Step 5: Solve for x
    x = 359,000,384,337,345,728/670,334,458.85
  6. Step 6: Final answer
    x = 535,554,124.66

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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.