Finding the Fourth Proportional to 1,553,758,068.80, 2,329,965,256.80 and 777,103,630.40
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Solution
The fourth proportional to 1,553,758,068.80, 2,329,965,256.80 and 777,103,630.40 is: 1,165,319,425.28
Step by Step Solution
- Step 1: Write the proportion equation
1,553,758,068.80 : 2,329,965,256.80 = 777,103,630.40 : x - Step 2: Convert to fraction form
1,553,758,068.80/2,329,965,256.80 = 777,103,630.40/x - Step 3: Cross multiply
1,553,758,068.80x = 2,329,965,256.80 × 777,103,630.40 - Step 4: Simplify right side
1,553,758,068.80x = 1,810,624,459,765,148,416 - Step 5: Solve for x
x = 1,810,624,459,765,148,416/1,553,758,068.80 - Step 6: Final answer
x = 1,165,319,425.28
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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.