Finding the Fourth Proportional to 412,564,721.88, 618,779,811.80 and 121,363,741.84
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Solution
The fourth proportional to 412,564,721.88, 618,779,811.80 and 121,363,741.84 is: 182,025,823.71
Step by Step Solution
- Step 1: Write the proportion equation
412,564,721.88 : 618,779,811.80 = 121,363,741.84 : x - Step 2: Convert to fraction form
412,564,721.88/618,779,811.80 = 121,363,741.84/x - Step 3: Cross multiply
412,564,721.88x = 618,779,811.80 × 121,363,741.84 - Step 4: Simplify right side
412,564,721.88x = 75,097,433,335,098,976 - Step 5: Solve for x
x = 75,097,433,335,098,976/412,564,721.88 - Step 6: Final answer
x = 182,025,823.71
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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.