Finding the Fourth Proportional to 1,138,177,412.76, 1,570,203,867.42 and 761,955,205.08
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Solution
The fourth proportional to 1,138,177,412.76, 1,570,203,867.42 and 761,955,205.08 is: 1,051,176,201.89
Step by Step Solution
- Step 1: Write the proportion equation
1,138,177,412.76 : 1,570,203,867.42 = 761,955,205.08 : x - Step 2: Convert to fraction form
1,138,177,412.76/1,570,203,867.42 = 761,955,205.08/x - Step 3: Cross multiply
1,138,177,412.76x = 1,570,203,867.42 × 761,955,205.08 - Step 4: Simplify right side
1,138,177,412.76x = 1,196,425,009,817,415,424 - Step 5: Solve for x
x = 1,196,425,009,817,415,424/1,138,177,412.76 - Step 6: Final answer
x = 1,051,176,201.89
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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.