Finding the Fourth Proportional to 135,432,932.12, 186,908,973.05 and 76,706,044.42
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Solution
The fourth proportional to 135,432,932.12, 186,908,973.05 and 76,706,044.42 is: 105,860,869.76
Step by Step Solution
- Step 1: Write the proportion equation
135,432,932.12 : 186,908,973.05 = 76,706,044.42 : x - Step 2: Convert to fraction form
135,432,932.12/186,908,973.05 = 76,706,044.42/x - Step 3: Cross multiply
135,432,932.12x = 186,908,973.05 × 76,706,044.42 - Step 4: Simplify right side
135,432,932.12x = 14,337,047,987,951,808 - Step 5: Solve for x
x = 14,337,047,987,951,808/135,432,932.12 - Step 6: Final answer
x = 105,860,869.76
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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.