Finding the Fourth Proportional to 822,386,730.96, 1,134,710,102.40 and 487,689,175.20
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Solution
The fourth proportional to 822,386,730.96, 1,134,710,102.40 and 487,689,175.20 is: 672,902,191.99
Step by Step Solution
- Step 1: Write the proportion equation
822,386,730.96 : 1,134,710,102.40 = 487,689,175.20 : x - Step 2: Convert to fraction form
822,386,730.96/1,134,710,102.40 = 487,689,175.20/x - Step 3: Cross multiply
822,386,730.96x = 1,134,710,102.40 × 487,689,175.20 - Step 4: Simplify right side
822,386,730.96x = 553,385,833,930,563,584 - Step 5: Solve for x
x = 553,385,833,930,563,584/822,386,730.96 - Step 6: Final answer
x = 672,902,191.99
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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.