Finding the Fourth Proportional to 429,031,876.97, 643,553,794.16 and 122,323,989.84
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Solution
The fourth proportional to 429,031,876.97, 643,553,794.16 and 122,323,989.84 is: 183,487,689.39
Step by Step Solution
- Step 1: Write the proportion equation
429,031,876.97 : 643,553,794.16 = 122,323,989.84 : x - Step 2: Convert to fraction form
429,031,876.97/643,553,794.16 = 122,323,989.84/x - Step 3: Cross multiply
429,031,876.97x = 643,553,794.16 × 122,323,989.84 - Step 4: Simplify right side
429,031,876.97x = 78,722,067,777,709,664 - Step 5: Solve for x
x = 78,722,067,777,709,664/429,031,876.97 - Step 6: Final answer
x = 183,487,689.39
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.