Finding the Fourth Proportional to 716,157,700,291.99, 988,292,509,529.52 and 390,996,981,476.02
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Solution
The fourth proportional to 716,157,700,291.99, 988,292,509,529.52 and 390,996,981,476.02 is: 539,573,040,803.52
Step by Step Solution
- Step 1: Write the proportion equation
716,157,700,291.99 : 988,292,509,529.52 = 390,996,981,476.02 : x - Step 2: Convert to fraction form
716,157,700,291.99/988,292,509,529.52 = 390,996,981,476.02/x - Step 3: Cross multiply
716,157,700,291.99x = 988,292,509,529.52 × 390,996,981,476.02 - Step 4: Simplify right side
716,157,700,291.99x = 386,419,388,041,403,102,658,560 - Step 5: Solve for x
x = 386,419,388,041,403,102,658,560/716,157,700,291.99 - Step 6: Final answer
x = 539,573,040,803.52
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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.