Finding the Fourth Proportional to 142,635,718.86, 213,943,113.49 and 45,565,363.05
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Solution
The fourth proportional to 142,635,718.86, 213,943,113.49 and 45,565,363.05 is: 68,344,701.57
Step by Step Solution
- Step 1: Write the proportion equation
142,635,718.86 : 213,943,113.49 = 45,565,363.05 : x - Step 2: Convert to fraction form
142,635,718.86/213,943,113.49 = 45,565,363.05/x - Step 3: Cross multiply
142,635,718.86x = 213,943,113.49 × 45,565,363.05 - Step 4: Simplify right side
142,635,718.86x = 9,748,395,638,219,202 - Step 5: Solve for x
x = 9,748,395,638,219,202/142,635,718.86 - Step 6: Final answer
x = 68,344,701.57
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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.