Finding the Fourth Proportional to 147,506,772.80, 221,260,159.20 and 132,894,113.60
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Solution
The fourth proportional to 147,506,772.80, 221,260,159.20 and 132,894,113.60 is: 199,341,170.40
Step by Step Solution
- Step 1: Write the proportion equation
147,506,772.80 : 221,260,159.20 = 132,894,113.60 : x - Step 2: Convert to fraction form
147,506,772.80/221,260,159.20 = 132,894,113.60/x - Step 3: Cross multiply
147,506,772.80x = 221,260,159.20 × 132,894,113.60 - Step 4: Simplify right side
147,506,772.80x = 29,404,172,731,878,884 - Step 5: Solve for x
x = 29,404,172,731,878,884/147,506,772.80 - Step 6: Final answer
x = 199,341,170.40
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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.