Finding the Fourth Proportional to 134,569,539.84, 185,706,046.36 and 72,689,905.74
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Solution
The fourth proportional to 134,569,539.84, 185,706,046.36 and 72,689,905.74 is: 100,312,113.88
Step by Step Solution
- Step 1: Write the proportion equation
134,569,539.84 : 185,706,046.36 = 72,689,905.74 : x - Step 2: Convert to fraction form
134,569,539.84/185,706,046.36 = 72,689,905.74/x - Step 3: Cross multiply
134,569,539.84x = 185,706,046.36 × 72,689,905.74 - Step 4: Simplify right side
134,569,539.84x = 13,498,955,005,256,470 - Step 5: Solve for x
x = 13,498,955,005,256,470/134,569,539.84 - Step 6: Final answer
x = 100,312,113.88
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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.