Finding the Fourth Proportional to 12,785,307.93, 19,177,830.65 and 7,390,525.68
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Solution
The fourth proportional to 12,785,307.93, 19,177,830.65 and 7,390,525.68 is: 11,085,712.66
Step by Step Solution
- Step 1: Write the proportion equation
12,785,307.93 : 19,177,830.65 = 7,390,525.68 : x - Step 2: Convert to fraction form
12,785,307.93/19,177,830.65 = 7,390,525.68/x - Step 3: Cross multiply
12,785,307.93x = 19,177,830.65 × 7,390,525.68 - Step 4: Simplify right side
12,785,307.93x = 141,734,249,923,992.41 - Step 5: Solve for x
x = 141,734,249,923,992.41/12,785,307.93 - Step 6: Final answer
x = 11,085,712.66
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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.