Home / 819,785,985,378.60-1,131,340,221,547.80-453,980,188,667.33

Finding the Fourth Proportional to 819,785,985,378.60, 1,131,340,221,547.80 and 453,980,188,667.33

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Solution

The fourth proportional to 819,785,985,378.60, 1,131,340,221,547.80 and 453,980,188,667.33 is: 626,512,353,694.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,785,985,378.60 : 1,131,340,221,547.80 = 453,980,188,667.33 : x
  2. Step 2: Convert to fraction form
    819,785,985,378.60/1,131,340,221,547.80 = 453,980,188,667.33/x
  3. Step 3: Cross multiply
    819,785,985,378.60x = 1,131,340,221,547.80 × 453,980,188,667.33
  4. Step 4: Simplify right side
    819,785,985,378.60x = 513,606,047,225,209,197,428,736
  5. Step 5: Solve for x
    x = 513,606,047,225,209,197,428,736/819,785,985,378.60
  6. Step 6: Final answer
    x = 626,512,353,694.38

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Double scale
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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.