Finding the Fourth Proportional to 145,865,177.28, 201,294,551.12 and 78,884,135.40
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Solution
The fourth proportional to 145,865,177.28, 201,294,551.12 and 78,884,135.40 is: 108,860,434.83
Step by Step Solution
- Step 1: Write the proportion equation
145,865,177.28 : 201,294,551.12 = 78,884,135.40 : x - Step 2: Convert to fraction form
145,865,177.28/201,294,551.12 = 78,884,135.40/x - Step 3: Cross multiply
145,865,177.28x = 201,294,551.12 × 78,884,135.40 - Step 4: Simplify right side
145,865,177.28x = 15,878,946,626,333,578 - Step 5: Solve for x
x = 15,878,946,626,333,578/145,865,177.28 - Step 6: Final answer
x = 108,860,434.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.