Finding the Fourth Proportional to 649,462,095.28, 896,387,896.56 and 385,290,720.28
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Solution
The fourth proportional to 649,462,095.28, 896,387,896.56 and 385,290,720.28 is: 531,778,437.61
Step by Step Solution
- Step 1: Write the proportion equation
649,462,095.28 : 896,387,896.56 = 385,290,720.28 : x - Step 2: Convert to fraction form
649,462,095.28/896,387,896.56 = 385,290,720.28/x - Step 3: Cross multiply
649,462,095.28x = 896,387,896.56 × 385,290,720.28 - Step 4: Simplify right side
649,462,095.28x = 345,369,938,315,876,480 - Step 5: Solve for x
x = 345,369,938,315,876,480/649,462,095.28 - Step 6: Final answer
x = 531,778,437.61
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1.5x scale
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.