Finding the Fourth Proportional to 126,374,509.74, 174,344,888.70 and 76,806,898.32
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Solution
The fourth proportional to 126,374,509.74, 174,344,888.70 and 76,806,898.32 is: 105,961,955.20
Step by Step Solution
- Step 1: Write the proportion equation
126,374,509.74 : 174,344,888.70 = 76,806,898.32 : x - Step 2: Convert to fraction form
126,374,509.74/174,344,888.70 = 76,806,898.32/x - Step 3: Cross multiply
126,374,509.74x = 174,344,888.70 × 76,806,898.32 - Step 4: Simplify right side
126,374,509.74x = 13,390,890,138,992,614 - Step 5: Solve for x
x = 13,390,890,138,992,614/126,374,509.74 - Step 6: Final answer
x = 105,961,955.20
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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.