Finding the Fourth Proportional to 391,140,587,760.60, 586,710,881,640.90 and 272,125,013,539.80
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Solution
The fourth proportional to 391,140,587,760.60, 586,710,881,640.90 and 272,125,013,539.80 is: 408,187,520,309.70
Step by Step Solution
- Step 1: Write the proportion equation
391,140,587,760.60 : 586,710,881,640.90 = 272,125,013,539.80 : x - Step 2: Convert to fraction form
391,140,587,760.60/586,710,881,640.90 = 272,125,013,539.80/x - Step 3: Cross multiply
391,140,587,760.60x = 586,710,881,640.90 × 272,125,013,539.80 - Step 4: Simplify right side
391,140,587,760.60x = 159,658,706,610,477,896,564,736 - Step 5: Solve for x
x = 159,658,706,610,477,896,564,736/391,140,587,760.60 - Step 6: Final answer
x = 408,187,520,309.70
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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.