Finding the Fourth Proportional to 7,878,421.68, 11,817,628.68 and 1,894,787.76
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Solution
The fourth proportional to 7,878,421.68, 11,817,628.68 and 1,894,787.76 is: 2,842,180.72
Step by Step Solution
- Step 1: Write the proportion equation
7,878,421.68 : 11,817,628.68 = 1,894,787.76 : x - Step 2: Convert to fraction form
7,878,421.68/11,817,628.68 = 1,894,787.76/x - Step 3: Cross multiply
7,878,421.68x = 11,817,628.68 × 1,894,787.76 - Step 4: Simplify right side
7,878,421.68x = 22,391,898,175,088.96 - Step 5: Solve for x
x = 22,391,898,175,088.96/7,878,421.68 - Step 6: Final answer
x = 2,842,180.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.