Finding the Fourth Proportional to 900,570,582.79, 1,242,800,096.50 and 518,881,669.64
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Solution
The fourth proportional to 900,570,582.79, 1,242,800,096.50 and 518,881,669.64 is: 716,064,016.99
Step by Step Solution
- Step 1: Write the proportion equation
900,570,582.79 : 1,242,800,096.50 = 518,881,669.64 : x - Step 2: Convert to fraction form
900,570,582.79/1,242,800,096.50 = 518,881,669.64/x - Step 3: Cross multiply
900,570,582.79x = 1,242,800,096.50 × 518,881,669.64 - Step 4: Simplify right side
900,570,582.79x = 644,866,189,094,459,136 - Step 5: Solve for x
x = 644,866,189,094,459,136/900,570,582.79 - Step 6: Final answer
x = 716,064,016.99
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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.