Finding the Fourth Proportional to 142,539,756.84, 196,704,864.45 and 77,349,660.84
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Solution
The fourth proportional to 142,539,756.84, 196,704,864.45 and 77,349,660.84 is: 106,742,531.97
Step by Step Solution
- Step 1: Write the proportion equation
142,539,756.84 : 196,704,864.45 = 77,349,660.84 : x - Step 2: Convert to fraction form
142,539,756.84/196,704,864.45 = 77,349,660.84/x - Step 3: Cross multiply
142,539,756.84x = 196,704,864.45 × 77,349,660.84 - Step 4: Simplify right side
142,539,756.84x = 15,215,054,550,785,672 - Step 5: Solve for x
x = 15,215,054,550,785,672/142,539,756.84 - Step 6: Final answer
x = 106,742,531.97
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.