Finding the Fourth Proportional to 258,575,688.84, 387,636,435.12 and 105,350,619.72
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Solution
The fourth proportional to 258,575,688.84, 387,636,435.12 and 105,350,619.72 is: 157,933,403.75
Step by Step Solution
- Step 1: Write the proportion equation
258,575,688.84 : 387,636,435.12 = 105,350,619.72 : x - Step 2: Convert to fraction form
258,575,688.84/387,636,435.12 = 105,350,619.72/x - Step 3: Cross multiply
258,575,688.84x = 387,636,435.12 × 105,350,619.72 - Step 4: Simplify right side
258,575,688.84x = 40,837,738,665,943,576 - Step 5: Solve for x
x = 40,837,738,665,943,576/258,575,688.84 - Step 6: Final answer
x = 157,933,403.75
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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.