Finding the Fourth Proportional to 2,088,551,983.95, 3,133,184,888.57 and 861,049,420.11
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Solution
The fourth proportional to 2,088,551,983.95, 3,133,184,888.57 and 861,049,420.11 is: 1,291,721,274.90
Step by Step Solution
- Step 1: Write the proportion equation
2,088,551,983.95 : 3,133,184,888.57 = 861,049,420.11 : x - Step 2: Convert to fraction form
2,088,551,983.95/3,133,184,888.57 = 861,049,420.11/x - Step 3: Cross multiply
2,088,551,983.95x = 3,133,184,888.57 × 861,049,420.11 - Step 4: Simplify right side
2,088,551,983.95x = 2,697,827,031,396,308,480 - Step 5: Solve for x
x = 2,697,827,031,396,308,480/2,088,551,983.95 - Step 6: Final answer
x = 1,291,721,274.90
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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.