Finding the Fourth Proportional to 1,248,538,492.80, 1,872,240,868.80 and 471,926,044.80
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Solution
The fourth proportional to 1,248,538,492.80, 1,872,240,868.80 and 471,926,044.80 is: 707,674,799.95
Step by Step Solution
- Step 1: Write the proportion equation
1,248,538,492.80 : 1,872,240,868.80 = 471,926,044.80 : x - Step 2: Convert to fraction form
1,248,538,492.80/1,872,240,868.80 = 471,926,044.80/x - Step 3: Cross multiply
1,248,538,492.80x = 1,872,240,868.80 × 471,926,044.80 - Step 4: Simplify right side
1,248,538,492.80x = 883,559,228,125,699,712 - Step 5: Solve for x
x = 883,559,228,125,699,712/1,248,538,492.80 - Step 6: Final answer
x = 707,674,799.95
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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.