Home / 252,407,341,431.28-378,634,287,069.65-82,427,821,320.93

Finding the Fourth Proportional to 252,407,341,431.28, 378,634,287,069.65 and 82,427,821,320.93

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Solution

The fourth proportional to 252,407,341,431.28, 378,634,287,069.65 and 82,427,821,320.93 is: 123,649,332,795.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,407,341,431.28 : 378,634,287,069.65 = 82,427,821,320.93 : x
  2. Step 2: Convert to fraction form
    252,407,341,431.28/378,634,287,069.65 = 82,427,821,320.93/x
  3. Step 3: Cross multiply
    252,407,341,431.28x = 378,634,287,069.65 × 82,427,821,320.93
  4. Step 4: Simplify right side
    252,407,341,431.28x = 31,209,999,360,554,826,727,424
  5. Step 5: Solve for x
    x = 31,209,999,360,554,826,727,424/252,407,341,431.28
  6. Step 6: Final answer
    x = 123,649,332,795.07

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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.