Finding the Fourth Proportional to 72,827,567.80, 109,241,351.70 and 69,468,335.80
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Solution
The fourth proportional to 72,827,567.80, 109,241,351.70 and 69,468,335.80 is: 104,202,503.70
Step by Step Solution
- Step 1: Write the proportion equation
72,827,567.80 : 109,241,351.70 = 69,468,335.80 : x - Step 2: Convert to fraction form
72,827,567.80/109,241,351.70 = 69,468,335.80/x - Step 3: Cross multiply
72,827,567.80x = 109,241,351.70 × 69,468,335.80 - Step 4: Simplify right side
72,827,567.80x = 7,588,814,903,141,501 - Step 5: Solve for x
x = 7,588,814,903,141,501/72,827,567.80 - Step 6: Final answer
x = 104,202,503.70
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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.