Finding the Fourth Proportional to 85,831,553.95, 128,747,330.93 and 49,551,848.35
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Solution
The fourth proportional to 85,831,553.95, 128,747,330.93 and 49,551,848.35 is: 74,327,772.53
Step by Step Solution
- Step 1: Write the proportion equation
85,831,553.95 : 128,747,330.93 = 49,551,848.35 : x - Step 2: Convert to fraction form
85,831,553.95/128,747,330.93 = 49,551,848.35/x - Step 3: Cross multiply
85,831,553.95x = 128,747,330.93 × 49,551,848.35 - Step 4: Simplify right side
85,831,553.95x = 6,379,668,217,462,865 - Step 5: Solve for x
x = 6,379,668,217,462,865/85,831,553.95 - Step 6: Final answer
x = 74,327,772.53
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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.