Finding the Fourth Proportional to 658,864,762.61, 909,235,099.08 and 357,450,058.62
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Solution
The fourth proportional to 658,864,762.61, 909,235,099.08 and 357,450,058.62 is: 493,282,017.66
Step by Step Solution
- Step 1: Write the proportion equation
658,864,762.61 : 909,235,099.08 = 357,450,058.62 : x - Step 2: Convert to fraction form
658,864,762.61/909,235,099.08 = 357,450,058.62/x - Step 3: Cross multiply
658,864,762.61x = 909,235,099.08 × 357,450,058.62 - Step 4: Simplify right side
658,864,762.61x = 325,006,139,465,507,520 - Step 5: Solve for x
x = 325,006,139,465,507,520/658,864,762.61 - Step 6: Final answer
x = 493,282,017.66
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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.