Finding the Fourth Proportional to 8,168,740.80, 12,257,776.80 and 5,646,206.40
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Solution
The fourth proportional to 8,168,740.80, 12,257,776.80 and 5,646,206.40 is: 8,472,534.45
Step by Step Solution
- Step 1: Write the proportion equation
8,168,740.80 : 12,257,776.80 = 5,646,206.40 : x - Step 2: Convert to fraction form
8,168,740.80/12,257,776.80 = 5,646,206.40/x - Step 3: Cross multiply
8,168,740.80x = 12,257,776.80 × 5,646,206.40 - Step 4: Simplify right side
8,168,740.80x = 69,209,937,817,931.53 - Step 5: Solve for x
x = 69,209,937,817,931.53/8,168,740.80 - Step 6: Final answer
x = 8,472,534.45
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1.5x scale
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.