Finding the Fourth Proportional to 129,024,489.60, 193,312,785.60 and 120,962,332.80
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Solution
The fourth proportional to 129,024,489.60, 193,312,785.60 and 120,962,332.80 is: 181,233,543.95
Step by Step Solution
- Step 1: Write the proportion equation
129,024,489.60 : 193,312,785.60 = 120,962,332.80 : x - Step 2: Convert to fraction form
129,024,489.60/193,312,785.60 = 120,962,332.80/x - Step 3: Cross multiply
129,024,489.60x = 193,312,785.60 × 120,962,332.80 - Step 4: Simplify right side
129,024,489.60x = 23,383,565,506,242,248 - Step 5: Solve for x
x = 23,383,565,506,242,248/129,024,489.60 - Step 6: Final answer
x = 181,233,543.95
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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.