Finding the Fourth Proportional to 302,429,971.80, 453,644,957.70 and 87,019,219.80
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Solution
The fourth proportional to 302,429,971.80, 453,644,957.70 and 87,019,219.80 is: 130,528,829.70
Step by Step Solution
- Step 1: Write the proportion equation
302,429,971.80 : 453,644,957.70 = 87,019,219.80 : x - Step 2: Convert to fraction form
302,429,971.80/453,644,957.70 = 87,019,219.80/x - Step 3: Cross multiply
302,429,971.80x = 453,644,957.70 × 87,019,219.80 - Step 4: Simplify right side
302,429,971.80x = 39,475,830,285,258,000 - Step 5: Solve for x
x = 39,475,830,285,258,000/302,429,971.80 - Step 6: Final answer
x = 130,528,829.70
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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.