Finding the Fourth Proportional to 1,239,750,397.40, 1,710,857,299.20 and 675,237,495.92
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Solution
The fourth proportional to 1,239,750,397.40, 1,710,857,299.20 and 675,237,495.92 is: 931,828,697.95
Step by Step Solution
- Step 1: Write the proportion equation
1,239,750,397.40 : 1,710,857,299.20 = 675,237,495.92 : x - Step 2: Convert to fraction form
1,239,750,397.40/1,710,857,299.20 = 675,237,495.92/x - Step 3: Cross multiply
1,239,750,397.40x = 1,710,857,299.20 × 675,237,495.92 - Step 4: Simplify right side
1,239,750,397.40x = 1,155,234,998,588,262,144 - Step 5: Solve for x
x = 1,155,234,998,588,262,144/1,239,750,397.40 - Step 6: Final answer
x = 931,828,697.95
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1.5x scale
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.