Finding the Fourth Proportional to 77,213,363.77, 115,819,952.70 and 19,705,641.08
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Solution
The fourth proportional to 77,213,363.77, 115,819,952.70 and 19,705,641.08 is: 29,558,437.90
Step by Step Solution
- Step 1: Write the proportion equation
77,213,363.77 : 115,819,952.70 = 19,705,641.08 : x - Step 2: Convert to fraction form
77,213,363.77/115,819,952.70 = 19,705,641.08/x - Step 3: Cross multiply
77,213,363.77x = 115,819,952.70 × 19,705,641.08 - Step 4: Simplify right side
77,213,363.77x = 2,282,306,417,710,248.50 - Step 5: Solve for x
x = 2,282,306,417,710,248.50/77,213,363.77 - Step 6: Final answer
x = 29,558,437.90
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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.