Finding the Fourth Proportional to 153,308,995.31, 211,565,337.26 and 83,694,376.19
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Solution
The fourth proportional to 153,308,995.31, 211,565,337.26 and 83,694,376.19 is: 115,497,651.59
Step by Step Solution
- Step 1: Write the proportion equation
153,308,995.31 : 211,565,337.26 = 83,694,376.19 : x - Step 2: Convert to fraction form
153,308,995.31/211,565,337.26 = 83,694,376.19/x - Step 3: Cross multiply
153,308,995.31x = 211,565,337.26 × 83,694,376.19 - Step 4: Simplify right side
153,308,995.31x = 17,706,828,925,513,104 - Step 5: Solve for x
x = 17,706,828,925,513,104/153,308,995.31 - Step 6: Final answer
x = 115,497,651.59
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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.