Finding the Fourth Proportional to 258,757,205.58, 387,909,060.21 and 97,312,515.66
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Solution
The fourth proportional to 258,757,205.58, 387,909,060.21 and 97,312,515.66 is: 145,883,498.83
Step by Step Solution
- Step 1: Write the proportion equation
258,757,205.58 : 387,909,060.21 = 97,312,515.66 : x - Step 2: Convert to fraction form
258,757,205.58/387,909,060.21 = 97,312,515.66/x - Step 3: Cross multiply
258,757,205.58x = 387,909,060.21 × 97,312,515.66 - Step 4: Simplify right side
258,757,205.58x = 37,748,406,496,341,504 - Step 5: Solve for x
x = 37,748,406,496,341,504/258,757,205.58 - Step 6: Final answer
x = 145,883,498.83
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.