Home / 764,952,428.48-1,147,428,642.71-247,754,047.28

Finding the Fourth Proportional to 764,952,428.48, 1,147,428,642.71 and 247,754,047.28

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Solution

The fourth proportional to 764,952,428.48, 1,147,428,642.71 and 247,754,047.28 is: 371,631,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,952,428.48 : 1,147,428,642.71 = 247,754,047.28 : x
  2. Step 2: Convert to fraction form
    764,952,428.48/1,147,428,642.71 = 247,754,047.28/x
  3. Step 3: Cross multiply
    764,952,428.48x = 1,147,428,642.71 × 247,754,047.28
  4. Step 4: Simplify right side
    764,952,428.48x = 284,280,090,191,281,824
  5. Step 5: Solve for x
    x = 284,280,090,191,281,824/764,952,428.48
  6. Step 6: Final answer
    x = 371,631,070.91

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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.