Finding the Fourth Proportional to 1,284,330,490, 1,772,523,106.32 and 719,967,798.96
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Solution
The fourth proportional to 1,284,330,490, 1,772,523,106.32 and 719,967,798.96 is: 993,637,984.46
Step by Step Solution
- Step 1: Write the proportion equation
1,284,330,490 : 1,772,523,106.32 = 719,967,798.96 : x - Step 2: Convert to fraction form
1,284,330,490/1,772,523,106.32 = 719,967,798.96/x - Step 3: Cross multiply
1,284,330,490x = 1,772,523,106.32 × 719,967,798.96 - Step 4: Simplify right side
1,284,330,490x = 1,276,159,559,462,952,448 - Step 5: Solve for x
x = 1,276,159,559,462,952,448/1,284,330,490 - Step 6: Final answer
x = 993,637,984.46
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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.