Finding the Fourth Proportional to 168,403,853.70, 252,605,780.55 and 155,806,733.70
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Solution
The fourth proportional to 168,403,853.70, 252,605,780.55 and 155,806,733.70 is: 233,710,100.55
Step by Step Solution
- Step 1: Write the proportion equation
168,403,853.70 : 252,605,780.55 = 155,806,733.70 : x - Step 2: Convert to fraction form
168,403,853.70/252,605,780.55 = 155,806,733.70/x - Step 3: Cross multiply
168,403,853.70x = 252,605,780.55 × 155,806,733.70 - Step 4: Simplify right side
168,403,853.70x = 39,357,681,581,234,488 - Step 5: Solve for x
x = 39,357,681,581,234,488/168,403,853.70 - Step 6: Final answer
x = 233,710,100.55
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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.