Finding the Fourth Proportional to 374,220,430.80, 561,330,646.20 and 155,798,179.80
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Solution
The fourth proportional to 374,220,430.80, 561,330,646.20 and 155,798,179.80 is: 233,697,269.70
Step by Step Solution
- Step 1: Write the proportion equation
374,220,430.80 : 561,330,646.20 = 155,798,179.80 : x - Step 2: Convert to fraction form
374,220,430.80/561,330,646.20 = 155,798,179.80/x - Step 3: Cross multiply
374,220,430.80x = 561,330,646.20 × 155,798,179.80 - Step 4: Simplify right side
374,220,430.80x = 87,454,292,943,917,808 - Step 5: Solve for x
x = 87,454,292,943,917,808/374,220,430.80 - Step 6: Final answer
x = 233,697,269.70
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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.