Finding the Fourth Proportional to 1,310,257,701.60, 1,965,386,552.40 and 1,210,488,511.20
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Solution
The fourth proportional to 1,310,257,701.60, 1,965,386,552.40 and 1,210,488,511.20 is: 1,815,732,766.80
Step by Step Solution
- Step 1: Write the proportion equation
1,310,257,701.60 : 1,965,386,552.40 = 1,210,488,511.20 : x - Step 2: Convert to fraction form
1,310,257,701.60/1,965,386,552.40 = 1,210,488,511.20/x - Step 3: Cross multiply
1,310,257,701.60x = 1,965,386,552.40 × 1,210,488,511.20 - Step 4: Simplify right side
1,310,257,701.60x = 2,379,077,841,747,176,960 - Step 5: Solve for x
x = 2,379,077,841,747,176,960/1,310,257,701.60 - Step 6: Final answer
x = 1,815,732,766.80
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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.