Finding the Fourth Proportional to 614,552,497.20, 921,828,745.80 and 549,982,415.70
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Solution
The fourth proportional to 614,552,497.20, 921,828,745.80 and 549,982,415.70 is: 824,973,623.55
Step by Step Solution
- Step 1: Write the proportion equation
614,552,497.20 : 921,828,745.80 = 549,982,415.70 : x - Step 2: Convert to fraction form
614,552,497.20/921,828,745.80 = 549,982,415.70/x - Step 3: Cross multiply
614,552,497.20x = 921,828,745.80 × 549,982,415.70 - Step 4: Simplify right side
614,552,497.20x = 506,989,600,476,785,216 - Step 5: Solve for x
x = 506,989,600,476,785,216/614,552,497.20 - Step 6: Final answer
x = 824,973,623.55
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Double scale
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Similar ratio
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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.