Finding the Fourth Proportional to 97,095,931.20, 145,643,896.80 and 87,354,158.40
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Solution
The fourth proportional to 97,095,931.20, 145,643,896.80 and 87,354,158.40 is: 131,031,237.60
Step by Step Solution
- Step 1: Write the proportion equation
97,095,931.20 : 145,643,896.80 = 87,354,158.40 : x - Step 2: Convert to fraction form
97,095,931.20/145,643,896.80 = 87,354,158.40/x - Step 3: Cross multiply
97,095,931.20x = 145,643,896.80 × 87,354,158.40 - Step 4: Simplify right side
97,095,931.20x = 12,722,600,031,060,456 - Step 5: Solve for x
x = 12,722,600,031,060,456/97,095,931.20 - Step 6: Final answer
x = 131,031,237.60
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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.