Home / 826,685,376.55-1,140,825,316.69-455,407,407.92

Finding the Fourth Proportional to 826,685,376.55, 1,140,825,316.69 and 455,407,407.92

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Solution

The fourth proportional to 826,685,376.55, 1,140,825,316.69 and 455,407,407.92 is: 628,461,945.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,685,376.55 : 1,140,825,316.69 = 455,407,407.92 : x
  2. Step 2: Convert to fraction form
    826,685,376.55/1,140,825,316.69 = 455,407,407.92/x
  3. Step 3: Cross multiply
    826,685,376.55x = 1,140,825,316.69 × 455,407,407.92
  4. Step 4: Simplify right side
    826,685,376.55x = 519,540,300,365,019,584
  5. Step 5: Solve for x
    x = 519,540,300,365,019,584/826,685,376.55
  6. Step 6: Final answer
    x = 628,461,945.87

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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.