Finding the Fourth Proportional to 508,355,301.51, 762,184,837.49 and 258,877,642.68
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Solution
The fourth proportional to 508,355,301.51, 762,184,837.49 and 258,877,642.68 is: 388,139,188.14
Step by Step Solution
- Step 1: Write the proportion equation
508,355,301.51 : 762,184,837.49 = 258,877,642.68 : x - Step 2: Convert to fraction form
508,355,301.51/762,184,837.49 = 258,877,642.68/x - Step 3: Cross multiply
508,355,301.51x = 762,184,837.49 × 258,877,642.68 - Step 4: Simplify right side
508,355,301.51x = 197,312,614,014,555,712 - Step 5: Solve for x
x = 197,312,614,014,555,712/508,355,301.51 - Step 6: Final answer
x = 388,139,188.14
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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.