Finding the Fourth Proportional to 1,118,996,831.20, 1,676,703,656.40 and 709,319,826.40
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Solution
The fourth proportional to 1,118,996,831.20, 1,676,703,656.40 and 709,319,826.40 is: 1,062,844,070.08
Step by Step Solution
- Step 1: Write the proportion equation
1,118,996,831.20 : 1,676,703,656.40 = 709,319,826.40 : x - Step 2: Convert to fraction form
1,118,996,831.20/1,676,703,656.40 = 709,319,826.40/x - Step 3: Cross multiply
1,118,996,831.20x = 1,676,703,656.40 × 709,319,826.40 - Step 4: Simplify right side
1,118,996,831.20x = 1,189,319,146,481,893,376 - Step 5: Solve for x
x = 1,189,319,146,481,893,376/1,118,996,831.20 - Step 6: Final answer
x = 1,062,844,070.08
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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.