Finding the Fourth Proportional to 143,789,101.80, 215,683,652.70 and 135,852,916.20
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Solution
The fourth proportional to 143,789,101.80, 215,683,652.70 and 135,852,916.20 is: 203,779,374.30
Step by Step Solution
- Step 1: Write the proportion equation
143,789,101.80 : 215,683,652.70 = 135,852,916.20 : x - Step 2: Convert to fraction form
143,789,101.80/215,683,652.70 = 135,852,916.20/x - Step 3: Cross multiply
143,789,101.80x = 215,683,652.70 × 135,852,916.20 - Step 4: Simplify right side
143,789,101.80x = 29,301,253,195,963,000 - Step 5: Solve for x
x = 29,301,253,195,963,000/143,789,101.80 - Step 6: Final answer
x = 203,779,374.30
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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.