Finding the Fourth Proportional to 671,786,715.12, 927,069,970.29 and 374,447,811.06
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Solution
The fourth proportional to 671,786,715.12, 927,069,970.29 and 374,447,811.06 is: 516,740,377.95
Step by Step Solution
- Step 1: Write the proportion equation
671,786,715.12 : 927,069,970.29 = 374,447,811.06 : x - Step 2: Convert to fraction form
671,786,715.12/927,069,970.29 = 374,447,811.06/x - Step 3: Cross multiply
671,786,715.12x = 927,069,970.29 × 374,447,811.06 - Step 4: Simplify right side
671,786,715.12x = 347,139,321,074,549,696 - Step 5: Solve for x
x = 347,139,321,074,549,696/671,786,715.12 - Step 6: Final answer
x = 516,740,377.95
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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.