Finding the Fourth Proportional to 712,181,566.80, 1,068,272,350.20 and 220,893,886.80
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Solution
The fourth proportional to 712,181,566.80, 1,068,272,350.20 and 220,893,886.80 is: 331,340,830.20
Step by Step Solution
- Step 1: Write the proportion equation
712,181,566.80 : 1,068,272,350.20 = 220,893,886.80 : x - Step 2: Convert to fraction form
712,181,566.80/1,068,272,350.20 = 220,893,886.80/x - Step 3: Cross multiply
712,181,566.80x = 1,068,272,350.20 × 220,893,886.80 - Step 4: Simplify right side
712,181,566.80x = 235,974,831,596,648,768 - Step 5: Solve for x
x = 235,974,831,596,648,768/712,181,566.80 - Step 6: Final answer
x = 331,340,830.20
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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.