Finding the Fourth Proportional to 153,308,994.74, 211,565,336.48 and 83,694,375.63
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Solution
The fourth proportional to 153,308,994.74, 211,565,336.48 and 83,694,375.63 is: 115,497,650.82
Step by Step Solution
- Step 1: Write the proportion equation
153,308,994.74 : 211,565,336.48 = 83,694,375.63 : x - Step 2: Convert to fraction form
153,308,994.74/211,565,336.48 = 83,694,375.63/x - Step 3: Cross multiply
153,308,994.74x = 211,565,336.48 × 83,694,375.63 - Step 4: Simplify right side
153,308,994.74x = 17,706,828,742,011,042 - Step 5: Solve for x
x = 17,706,828,742,011,042/153,308,994.74 - Step 6: Final answer
x = 115,497,650.82
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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.