Finding the Fourth Proportional to 258,757,211.58, 387,909,069.21 and 97,312,521.66
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Solution
The fourth proportional to 258,757,211.58, 387,909,069.21 and 97,312,521.66 is: 145,883,507.82
Step by Step Solution
- Step 1: Write the proportion equation
258,757,211.58 : 387,909,069.21 = 97,312,521.66 : x - Step 2: Convert to fraction form
258,757,211.58/387,909,069.21 = 97,312,521.66/x - Step 3: Cross multiply
258,757,211.58x = 387,909,069.21 × 97,312,521.66 - Step 4: Simplify right side
258,757,211.58x = 37,748,409,699,608,560 - Step 5: Solve for x
x = 37,748,409,699,608,560/258,757,211.58 - Step 6: Final answer
x = 145,883,507.82
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.