Finding the Fourth Proportional to 90,696,005.80, 136,044,008.70 and 83,610,125.80
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Solution
The fourth proportional to 90,696,005.80, 136,044,008.70 and 83,610,125.80 is: 125,415,188.70
Step by Step Solution
- Step 1: Write the proportion equation
90,696,005.80 : 136,044,008.70 = 83,610,125.80 : x - Step 2: Convert to fraction form
90,696,005.80/136,044,008.70 = 83,610,125.80/x - Step 3: Cross multiply
90,696,005.80x = 136,044,008.70 × 83,610,125.80 - Step 4: Simplify right side
90,696,005.80x = 11,374,656,681,743,294 - Step 5: Solve for x
x = 11,374,656,681,743,294/90,696,005.80 - Step 6: Final answer
x = 125,415,188.70
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1.5x scale
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.