Finding the Fourth Proportional to 26,118,315.81, 39,177,564.84 and 7,922,667.78
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Solution
The fourth proportional to 26,118,315.81, 39,177,564.84 and 7,922,667.78 is: 11,884,029.31
Step by Step Solution
- Step 1: Write the proportion equation
26,118,315.81 : 39,177,564.84 = 7,922,667.78 : x - Step 2: Convert to fraction form
26,118,315.81/39,177,564.84 = 7,922,667.78/x - Step 3: Cross multiply
26,118,315.81x = 39,177,564.84 × 7,922,667.78 - Step 4: Simplify right side
26,118,315.81x = 310,390,830,656,728.88 - Step 5: Solve for x
x = 310,390,830,656,728.88/26,118,315.81 - Step 6: Final answer
x = 11,884,029.31
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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.