Finding the Fourth Proportional to 10,363,454.79, 15,558,652.97 and 7,968,980.93
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Solution
The fourth proportional to 10,363,454.79, 15,558,652.97 and 7,968,980.93 is: 11,963,829.76
Step by Step Solution
- Step 1: Write the proportion equation
10,363,454.79 : 15,558,652.97 = 7,968,980.93 : x - Step 2: Convert to fraction form
10,363,454.79/15,558,652.97 = 7,968,980.93/x - Step 3: Cross multiply
10,363,454.79x = 15,558,652.97 × 7,968,980.93 - Step 4: Simplify right side
10,363,454.79x = 123,986,608,814,417.86 - Step 5: Solve for x
x = 123,986,608,814,417.86/10,363,454.79 - Step 6: Final answer
x = 11,963,829.76
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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.