Finding the Fourth Proportional to 935,553,593.84, 1,291,063,985.21 and 517,865,879.18
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Solution
The fourth proportional to 935,553,593.84, 1,291,063,985.21 and 517,865,879.18 is: 714,654,927.51
Step by Step Solution
- Step 1: Write the proportion equation
935,553,593.84 : 1,291,063,985.21 = 517,865,879.18 : x - Step 2: Convert to fraction form
935,553,593.84/1,291,063,985.21 = 517,865,879.18/x - Step 3: Cross multiply
935,553,593.84x = 1,291,063,985.21 × 517,865,879.18 - Step 4: Simplify right side
935,553,593.84x = 668,597,985,782,933,504 - Step 5: Solve for x
x = 668,597,985,782,933,504/935,553,593.84 - Step 6: Final answer
x = 714,654,927.51
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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.