Finding the Fourth Proportional to 13,506,990.04, 18,639,652.01 and 7,312,036.58
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Solution
The fourth proportional to 13,506,990.04, 18,639,652.01 and 7,312,036.58 is: 10,090,613.60
Step by Step Solution
- Step 1: Write the proportion equation
13,506,990.04 : 18,639,652.01 = 7,312,036.58 : x - Step 2: Convert to fraction form
13,506,990.04/18,639,652.01 = 7,312,036.58/x - Step 3: Cross multiply
13,506,990.04x = 18,639,652.01 × 7,312,036.58 - Step 4: Simplify right side
13,506,990.04x = 136,293,817,369,285.02 - Step 5: Solve for x
x = 136,293,817,369,285.02/13,506,990.04 - Step 6: Final answer
x = 10,090,613.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.