Finding the Fourth Proportional to 1,374,984,923.96, 1,897,525,028.04 and 772,261,762.08
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Solution
The fourth proportional to 1,374,984,923.96, 1,897,525,028.04 and 772,261,762.08 is: 1,065,746,973.81
Step by Step Solution
- Step 1: Write the proportion equation
1,374,984,923.96 : 1,897,525,028.04 = 772,261,762.08 : x - Step 2: Convert to fraction form
1,374,984,923.96/1,897,525,028.04 = 772,261,762.08/x - Step 3: Cross multiply
1,374,984,923.96x = 1,897,525,028.04 × 772,261,762.08 - Step 4: Simplify right side
1,374,984,923.96x = 1,465,386,021,745,071,872 - Step 5: Solve for x
x = 1,465,386,021,745,071,872/1,374,984,923.96 - Step 6: Final answer
x = 1,065,746,973.81
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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.