Finding the Fourth Proportional to 628,884,134.34, 867,924,685.40 and 378,069,724.95
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Solution
The fourth proportional to 628,884,134.34, 867,924,685.40 and 378,069,724.95 is: 521,775,044.35
Step by Step Solution
- Step 1: Write the proportion equation
628,884,134.34 : 867,924,685.40 = 378,069,724.95 : x - Step 2: Convert to fraction form
628,884,134.34/867,924,685.40 = 378,069,724.95/x - Step 3: Cross multiply
628,884,134.34x = 867,924,685.40 × 378,069,724.95 - Step 4: Simplify right side
628,884,134.34x = 328,136,047,086,493,248 - Step 5: Solve for x
x = 328,136,047,086,493,248/628,884,134.34 - Step 6: Final answer
x = 521,775,044.35
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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.