Finding the Fourth Proportional to 860,159,438.70, 1,288,325,970.45 and 707,104,430.70
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Solution
The fourth proportional to 860,159,438.70, 1,288,325,970.45 and 707,104,430.70 is: 1,059,083,887.13
Step by Step Solution
- Step 1: Write the proportion equation
860,159,438.70 : 1,288,325,970.45 = 707,104,430.70 : x - Step 2: Convert to fraction form
860,159,438.70/1,288,325,970.45 = 707,104,430.70/x - Step 3: Cross multiply
860,159,438.70x = 1,288,325,970.45 × 707,104,430.70 - Step 4: Simplify right side
860,159,438.70x = 910,981,001,891,072,384 - Step 5: Solve for x
x = 910,981,001,891,072,384/860,159,438.70 - Step 6: Final answer
x = 1,059,083,887.13
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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.