Home / 919,218,006.75-1,268,912,263.02-617,978,026.65

Finding the Fourth Proportional to 919,218,006.75, 1,268,912,263.02 and 617,978,026.65

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Solution

The fourth proportional to 919,218,006.75, 1,268,912,263.02 and 617,978,026.65 is: 853,072,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,218,006.75 : 1,268,912,263.02 = 617,978,026.65 : x
  2. Step 2: Convert to fraction form
    919,218,006.75/1,268,912,263.02 = 617,978,026.65/x
  3. Step 3: Cross multiply
    919,218,006.75x = 1,268,912,263.02 × 617,978,026.65
  4. Step 4: Simplify right side
    919,218,006.75x = 784,159,896,293,085,312
  5. Step 5: Solve for x
    x = 784,159,896,293,085,312/919,218,006.75
  6. Step 6: Final answer
    x = 853,072,819.00

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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.