Finding the Fourth Proportional to 77,704,572, 107,229,492.84 and 42,896,513.28
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Solution
The fourth proportional to 77,704,572, 107,229,492.84 and 42,896,513.28 is: 59,195,633.48
Step by Step Solution
- Step 1: Write the proportion equation
77,704,572 : 107,229,492.84 = 42,896,513.28 : x - Step 2: Convert to fraction form
77,704,572/107,229,492.84 = 42,896,513.28/x - Step 3: Cross multiply
77,704,572x = 107,229,492.84 × 42,896,513.28 - Step 4: Simplify right side
77,704,572x = 4,599,771,363,618,725 - Step 5: Solve for x
x = 4,599,771,363,618,725/77,704,572 - Step 6: Final answer
x = 59,195,633.48
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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.