Finding the Fourth Proportional to 139,122,309.64, 208,723,853.76 and 56,081,206.99
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Solution
The fourth proportional to 139,122,309.64, 208,723,853.76 and 56,081,206.99 is: 84,138,091.70
Step by Step Solution
- Step 1: Write the proportion equation
139,122,309.64 : 208,723,853.76 = 56,081,206.99 : x - Step 2: Convert to fraction form
139,122,309.64/208,723,853.76 = 56,081,206.99/x - Step 3: Cross multiply
139,122,309.64x = 208,723,853.76 × 56,081,206.99 - Step 4: Simplify right side
139,122,309.64x = 11,705,485,646,465,050 - Step 5: Solve for x
x = 11,705,485,646,465,050/139,122,309.64 - Step 6: Final answer
x = 84,138,091.70
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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.