Finding the Fourth Proportional to 1,235,186,406.90, 1,852,767,800.55 and 302,513,356.80
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Solution
The fourth proportional to 1,235,186,406.90, 1,852,767,800.55 and 302,513,356.80 is: 453,767,142.83
Step by Step Solution
- Step 1: Write the proportion equation
1,235,186,406.90 : 1,852,767,800.55 = 302,513,356.80 : x - Step 2: Convert to fraction form
1,235,186,406.90/1,852,767,800.55 = 302,513,356.80/x - Step 3: Cross multiply
1,235,186,406.90x = 1,852,767,800.55 × 302,513,356.80 - Step 4: Simplify right side
1,235,186,406.90x = 560,487,006,715,333,376 - Step 5: Solve for x
x = 560,487,006,715,333,376/1,235,186,406.90 - Step 6: Final answer
x = 453,767,142.83
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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.