Finding the Fourth Proportional to 873,077,269.80, 1,309,615,904.70 and 758,286,013.80
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Solution
The fourth proportional to 873,077,269.80, 1,309,615,904.70 and 758,286,013.80 is: 1,137,429,020.70
Step by Step Solution
- Step 1: Write the proportion equation
873,077,269.80 : 1,309,615,904.70 = 758,286,013.80 : x - Step 2: Convert to fraction form
873,077,269.80/1,309,615,904.70 = 758,286,013.80/x - Step 3: Cross multiply
873,077,269.80x = 1,309,615,904.70 × 758,286,013.80 - Step 4: Simplify right side
873,077,269.80x = 993,063,423,984,043,648 - Step 5: Solve for x
x = 993,063,423,984,043,648/873,077,269.80 - Step 6: Final answer
x = 1,137,429,020.70
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1.5x scale
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.