Finding the Fourth Proportional to 1,512,936,927.03, 2,087,763,042.87 and 877,808,221.23
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Solution
The fourth proportional to 1,512,936,927.03, 2,087,763,042.87 and 877,808,221.23 is: 1,211,323,175.65
Step by Step Solution
- Step 1: Write the proportion equation
1,512,936,927.03 : 2,087,763,042.87 = 877,808,221.23 : x - Step 2: Convert to fraction form
1,512,936,927.03/2,087,763,042.87 = 877,808,221.23/x - Step 3: Cross multiply
1,512,936,927.03x = 2,087,763,042.87 × 877,808,221.23 - Step 4: Simplify right side
1,512,936,927.03x = 1,832,655,563,011,446,784 - Step 5: Solve for x
x = 1,832,655,563,011,446,784/1,512,936,927.03 - Step 6: Final answer
x = 1,211,323,175.65
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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.