Finding the Fourth Proportional to 245,423,337.22, 338,683,969.65 and 135,415,055.62
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Solution
The fourth proportional to 245,423,337.22, 338,683,969.65 and 135,415,055.62 is: 186,872,646.70
Step by Step Solution
- Step 1: Write the proportion equation
245,423,337.22 : 338,683,969.65 = 135,415,055.62 : x - Step 2: Convert to fraction form
245,423,337.22/338,683,969.65 = 135,415,055.62/x - Step 3: Cross multiply
245,423,337.22x = 338,683,969.65 × 135,415,055.62 - Step 4: Simplify right side
245,423,337.22x = 45,862,908,587,757,144 - Step 5: Solve for x
x = 45,862,908,587,757,144/245,423,337.22 - Step 6: Final answer
x = 186,872,646.70
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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.