Finding the Fourth Proportional to 155,390,638.08, 214,444,155.84 and 84,830,010.72
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Solution
The fourth proportional to 155,390,638.08, 214,444,155.84 and 84,830,010.72 is: 117,068,185.47
Step by Step Solution
- Step 1: Write the proportion equation
155,390,638.08 : 214,444,155.84 = 84,830,010.72 : x - Step 2: Convert to fraction form
155,390,638.08/214,444,155.84 = 84,830,010.72/x - Step 3: Cross multiply
155,390,638.08x = 214,444,155.84 × 84,830,010.72 - Step 4: Simplify right side
155,390,638.08x = 18,191,300,038,748,552 - Step 5: Solve for x
x = 18,191,300,038,748,552/155,390,638.08 - Step 6: Final answer
x = 117,068,185.47
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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.