Finding the Fourth Proportional to 153,308,995.81, 211,565,337.96 and 83,694,376.69
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Solution
The fourth proportional to 153,308,995.81, 211,565,337.96 and 83,694,376.69 is: 115,497,652.28
Step by Step Solution
- Step 1: Write the proportion equation
153,308,995.81 : 211,565,337.96 = 83,694,376.69 : x - Step 2: Convert to fraction form
153,308,995.81/211,565,337.96 = 83,694,376.69/x - Step 3: Cross multiply
153,308,995.81x = 211,565,337.96 × 83,694,376.69 - Step 4: Simplify right side
153,308,995.81x = 17,706,829,089,352,924 - Step 5: Solve for x
x = 17,706,829,089,352,924/153,308,995.81 - Step 6: Final answer
x = 115,497,652.28
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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.