Home / 706,116,839.38-974,450,203.02-388,613,642.02

Finding the Fourth Proportional to 706,116,839.38, 974,450,203.02 and 388,613,642.02

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Solution

The fourth proportional to 706,116,839.38, 974,450,203.02 and 388,613,642.02 is: 536,291,759.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,116,839.38 : 974,450,203.02 = 388,613,642.02 : x
  2. Step 2: Convert to fraction form
    706,116,839.38/974,450,203.02 = 388,613,642.02/x
  3. Step 3: Cross multiply
    706,116,839.38x = 974,450,203.02 × 388,613,642.02
  4. Step 4: Simplify right side
    706,116,839.38x = 378,684,642,362,730,560
  5. Step 5: Solve for x
    x = 378,684,642,362,730,560/706,116,839.38
  6. Step 6: Final answer
    x = 536,291,759.73

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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.