Finding the Fourth Proportional to 118,562,615.49, 163,612,895.24 and 65,641,681.99
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Solution
The fourth proportional to 118,562,615.49, 163,612,895.24 and 65,641,681.99 is: 90,583,575.55
Step by Step Solution
- Step 1: Write the proportion equation
118,562,615.49 : 163,612,895.24 = 65,641,681.99 : x - Step 2: Convert to fraction form
118,562,615.49/163,612,895.24 = 65,641,681.99/x - Step 3: Cross multiply
118,562,615.49x = 163,612,895.24 × 65,641,681.99 - Step 4: Simplify right side
118,562,615.49x = 10,739,825,637,885,836 - Step 5: Solve for x
x = 10,739,825,637,885,836/118,562,615.49 - Step 6: Final answer
x = 90,583,575.55
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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.