Finding the Fourth Proportional to 1,771,715,425.80, 2,656,776,876.30 and 680,835,937.80
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Solution
The fourth proportional to 1,771,715,425.80, 2,656,776,876.30 and 680,835,937.80 is: 1,020,947,918.48
Step by Step Solution
- Step 1: Write the proportion equation
1,771,715,425.80 : 2,656,776,876.30 = 680,835,937.80 : x - Step 2: Convert to fraction form
1,771,715,425.80/2,656,776,876.30 = 680,835,937.80/x - Step 3: Cross multiply
1,771,715,425.80x = 2,656,776,876.30 × 680,835,937.80 - Step 4: Simplify right side
1,771,715,425.80x = 1,808,829,176,101,065,216 - Step 5: Solve for x
x = 1,808,829,176,101,065,216/1,771,715,425.80 - Step 6: Final answer
x = 1,020,947,918.48
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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.