Finding the Fourth Proportional to 135,564,479.95, 187,065,910.12 and 76,028,193.07
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Solution
The fourth proportional to 135,564,479.95, 187,065,910.12 and 76,028,193.07 is: 104,911,575.18
Step by Step Solution
- Step 1: Write the proportion equation
135,564,479.95 : 187,065,910.12 = 76,028,193.07 : x - Step 2: Convert to fraction form
135,564,479.95/187,065,910.12 = 76,028,193.07/x - Step 3: Cross multiply
135,564,479.95x = 187,065,910.12 × 76,028,193.07 - Step 4: Simplify right side
135,564,479.95x = 14,222,283,130,267,208 - Step 5: Solve for x
x = 14,222,283,130,267,208/135,564,479.95 - Step 6: Final answer
x = 104,911,575.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.