Finding the Fourth Proportional to 999,148,403.35, 1,378,841,127.38 and 547,018,831.99
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Solution
The fourth proportional to 999,148,403.35, 1,378,841,127.38 and 547,018,831.99 is: 754,894,928.99
Step by Step Solution
- Step 1: Write the proportion equation
999,148,403.35 : 1,378,841,127.38 = 547,018,831.99 : x - Step 2: Convert to fraction form
999,148,403.35/1,378,841,127.38 = 547,018,831.99/x - Step 3: Cross multiply
999,148,403.35x = 1,378,841,127.38 × 547,018,831.99 - Step 4: Simplify right side
999,148,403.35x = 754,252,062,999,182,464 - Step 5: Solve for x
x = 754,252,062,999,182,464/999,148,403.35 - Step 6: Final answer
x = 754,894,928.99
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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.