Finding the Fourth Proportional to 11,688,683.33, 16,128,985.68 and 6,460,985.45
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Solution
The fourth proportional to 11,688,683.33, 16,128,985.68 and 6,460,985.45 is: 8,915,387.55
Step by Step Solution
- Step 1: Write the proportion equation
11,688,683.33 : 16,128,985.68 = 6,460,985.45 : x - Step 2: Convert to fraction form
11,688,683.33/16,128,985.68 = 6,460,985.45/x - Step 3: Cross multiply
11,688,683.33x = 16,128,985.68 × 6,460,985.45 - Step 4: Simplify right side
11,688,683.33x = 104,209,141,842,060.81 - Step 5: Solve for x
x = 104,209,141,842,060.81/11,688,683.33 - Step 6: Final answer
x = 8,915,387.55
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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.