Finding the Fourth Proportional to 12,789,415.07, 19,197,773.13 and 5,506,479.08
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Solution
The fourth proportional to 12,789,415.07, 19,197,773.13 and 5,506,479.08 is: 8,265,595.85
Step by Step Solution
- Step 1: Write the proportion equation
12,789,415.07 : 19,197,773.13 = 5,506,479.08 : x - Step 2: Convert to fraction form
12,789,415.07/19,197,773.13 = 5,506,479.08/x - Step 3: Cross multiply
12,789,415.07x = 19,197,773.13 × 5,506,479.08 - Step 4: Simplify right side
12,789,415.07x = 105,712,136,122,931.11 - Step 5: Solve for x
x = 105,712,136,122,931.11/12,789,415.07 - Step 6: Final answer
x = 8,265,595.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.