Finding the Fourth Proportional to 42,478,508.36, 63,718,131.29 and 13,724,647.01
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Solution
The fourth proportional to 42,478,508.36, 63,718,131.29 and 13,724,647.01 is: 20,587,089.66
Step by Step Solution
- Step 1: Write the proportion equation
42,478,508.36 : 63,718,131.29 = 13,724,647.01 : x - Step 2: Convert to fraction form
42,478,508.36/63,718,131.29 = 13,724,647.01/x - Step 3: Cross multiply
42,478,508.36x = 63,718,131.29 × 13,724,647.01 - Step 4: Simplify right side
42,478,508.36x = 874,508,860,023,462.62 - Step 5: Solve for x
x = 874,508,860,023,462.62/42,478,508.36 - Step 6: Final answer
x = 20,587,089.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.