Finding the Fourth Proportional to 129,873,209,331.08, 179,161,340,301.12 and 112,701,962,004.84
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Solution
The fourth proportional to 129,873,209,331.08, 179,161,340,301.12 and 112,701,962,004.84 is: 155,473,439,605.85
Step by Step Solution
- Step 1: Write the proportion equation
129,873,209,331.08 : 179,161,340,301.12 = 112,701,962,004.84 : x - Step 2: Convert to fraction form
129,873,209,331.08/179,161,340,301.12 = 112,701,962,004.84/x - Step 3: Cross multiply
129,873,209,331.08x = 179,161,340,301.12 × 112,701,962,004.84 - Step 4: Simplify right side
129,873,209,331.08x = 20,191,834,567,353,032,507,392 - Step 5: Solve for x
x = 20,191,834,567,353,032,507,392/129,873,209,331.08 - Step 6: Final answer
x = 155,473,439,605.85
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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.