Finding the Fourth Proportional to 877,421,104.58, 1,316,131,576.95 and 386,134,374.11
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Solution
The fourth proportional to 877,421,104.58, 1,316,131,576.95 and 386,134,374.11 is: 579,201,525.99
Step by Step Solution
- Step 1: Write the proportion equation
877,421,104.58 : 1,316,131,576.95 = 386,134,374.11 : x - Step 2: Convert to fraction form
877,421,104.58/1,316,131,576.95 = 386,134,374.11/x - Step 3: Cross multiply
877,421,104.58x = 1,316,131,576.95 × 386,134,374.11 - Step 4: Simplify right side
877,421,104.58x = 508,203,642,705,414,912 - Step 5: Solve for x
x = 508,203,642,705,414,912/877,421,104.58 - Step 6: Final answer
x = 579,201,525.99
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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.