Finding the Fourth Proportional to 20,781,077,128.55, 31,168,466,134.99 and 5,655,825,162.11
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Solution
The fourth proportional to 20,781,077,128.55, 31,168,466,134.99 and 5,655,825,162.11 is: 8,482,880,552.35
Step by Step Solution
- Step 1: Write the proportion equation
20,781,077,128.55 : 31,168,466,134.99 = 5,655,825,162.11 : x - Step 2: Convert to fraction form
20,781,077,128.55/31,168,466,134.99 = 5,655,825,162.11/x - Step 3: Cross multiply
20,781,077,128.55x = 31,168,466,134.99 × 5,655,825,162.11 - Step 4: Simplify right side
20,781,077,128.55x = 176,283,395,030,716,481,536 - Step 5: Solve for x
x = 176,283,395,030,716,481,536/20,781,077,128.55 - Step 6: Final answer
x = 8,482,880,552.35
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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.