Finding the Fourth Proportional to 885,345,125.60, 1,328,017,688.40 and 873,251,890.40
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Solution
The fourth proportional to 885,345,125.60, 1,328,017,688.40 and 873,251,890.40 is: 1,309,877,835.60
Step by Step Solution
- Step 1: Write the proportion equation
885,345,125.60 : 1,328,017,688.40 = 873,251,890.40 : x - Step 2: Convert to fraction form
885,345,125.60/1,328,017,688.40 = 873,251,890.40/x - Step 3: Cross multiply
885,345,125.60x = 1,328,017,688.40 × 873,251,890.40 - Step 4: Simplify right side
885,345,125.60x = 1,159,693,956,879,938,304 - Step 5: Solve for x
x = 1,159,693,956,879,938,304/885,345,125.60 - Step 6: Final answer
x = 1,309,877,835.60
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1.5x scale
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.