Finding the Fourth Proportional to 1,027,487,387.26, 1,417,933,510.95 and 557,588,712.70
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Solution
The fourth proportional to 1,027,487,387.26, 1,417,933,510.95 and 557,588,712.70 is: 769,472,920.90
Step by Step Solution
- Step 1: Write the proportion equation
1,027,487,387.26 : 1,417,933,510.95 = 557,588,712.70 : x - Step 2: Convert to fraction form
1,027,487,387.26/1,417,933,510.95 = 557,588,712.70/x - Step 3: Cross multiply
1,027,487,387.26x = 1,417,933,510.95 × 557,588,712.70 - Step 4: Simplify right side
1,027,487,387.26x = 790,623,721,064,801,920 - Step 5: Solve for x
x = 790,623,721,064,801,920/1,027,487,387.26 - Step 6: Final answer
x = 769,472,920.90
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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.