Finding the Fourth Proportional to 307,505,432.68, 424,357,525.86 and 168,276,187.24
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Solution
The fourth proportional to 307,505,432.68, 424,357,525.86 and 168,276,187.24 is: 232,221,154.13
Step by Step Solution
- Step 1: Write the proportion equation
307,505,432.68 : 424,357,525.86 = 168,276,187.24 : x - Step 2: Convert to fraction form
307,505,432.68/424,357,525.86 = 168,276,187.24/x - Step 3: Cross multiply
307,505,432.68x = 424,357,525.86 × 168,276,187.24 - Step 4: Simplify right side
307,505,432.68x = 71,409,266,478,320,512 - Step 5: Solve for x
x = 71,409,266,478,320,512/307,505,432.68 - Step 6: Final answer
x = 232,221,154.13
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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.