Finding the Fourth Proportional to 977,642,109.23, 1,349,153,129.15 and 531,602,276.27
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Solution
The fourth proportional to 977,642,109.23, 1,349,153,129.15 and 531,602,276.27 is: 733,614,957.58
Step by Step Solution
- Step 1: Write the proportion equation
977,642,109.23 : 1,349,153,129.15 = 531,602,276.27 : x - Step 2: Convert to fraction form
977,642,109.23/1,349,153,129.15 = 531,602,276.27/x - Step 3: Cross multiply
977,642,109.23x = 1,349,153,129.15 × 531,602,276.27 - Step 4: Simplify right side
977,642,109.23x = 717,212,874,483,529,472 - Step 5: Solve for x
x = 717,212,874,483,529,472/977,642,109.23 - Step 6: Final answer
x = 733,614,957.58
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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.