Finding the Fourth Proportional to 1,814,579,830.80, 2,721,869,746.20 and 522,115,318.80
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Solution
The fourth proportional to 1,814,579,830.80, 2,721,869,746.20 and 522,115,318.80 is: 783,172,978.20
Step by Step Solution
- Step 1: Write the proportion equation
1,814,579,830.80 : 2,721,869,746.20 = 522,115,318.80 : x - Step 2: Convert to fraction form
1,814,579,830.80/2,721,869,746.20 = 522,115,318.80/x - Step 3: Cross multiply
1,814,579,830.80x = 2,721,869,746.20 × 522,115,318.80 - Step 4: Simplify right side
1,814,579,830.80x = 1,421,129,890,269,287,936 - Step 5: Solve for x
x = 1,421,129,890,269,287,936/1,814,579,830.80 - Step 6: Final answer
x = 783,172,978.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.