Finding the Fourth Proportional to 130,572,487.50, 180,190,029.11 and 71,833,888.41
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Solution
The fourth proportional to 130,572,487.50, 180,190,029.11 and 71,833,888.41 is: 99,130,764.00
Step by Step Solution
- Step 1: Write the proportion equation
130,572,487.50 : 180,190,029.11 = 71,833,888.41 : x - Step 2: Convert to fraction form
130,572,487.50/180,190,029.11 = 71,833,888.41/x - Step 3: Cross multiply
130,572,487.50x = 180,190,029.11 × 71,833,888.41 - Step 4: Simplify right side
130,572,487.50x = 12,943,750,443,323,220 - Step 5: Solve for x
x = 12,943,750,443,323,220/130,572,487.50 - Step 6: Final answer
x = 99,130,764.00
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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.