Home / 919,218,040.47-1,268,912,309.67-617,978,060.28

Finding the Fourth Proportional to 919,218,040.47, 1,268,912,309.67 and 617,978,060.28

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Solution

The fourth proportional to 919,218,040.47, 1,268,912,309.67 and 617,978,060.28 is: 853,072,865.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,218,040.47 : 1,268,912,309.67 = 617,978,060.28 : x
  2. Step 2: Convert to fraction form
    919,218,040.47/1,268,912,309.67 = 617,978,060.28/x
  3. Step 3: Cross multiply
    919,218,040.47x = 1,268,912,309.67 × 617,978,060.28
  4. Step 4: Simplify right side
    919,218,040.47x = 784,159,967,795,281,280
  5. Step 5: Solve for x
    x = 784,159,967,795,281,280/919,218,040.47
  6. Step 6: Final answer
    x = 853,072,865.49

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1.5x scale

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.