Finding the Fourth Proportional to 90,828,176.74, 125,506,842.45 and 64,677,293.93
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Solution
The fourth proportional to 90,828,176.74, 125,506,842.45 and 64,677,293.93 is: 89,371,417.89
Step by Step Solution
- Step 1: Write the proportion equation
90,828,176.74 : 125,506,842.45 = 64,677,293.93 : x - Step 2: Convert to fraction form
90,828,176.74/125,506,842.45 = 64,677,293.93/x - Step 3: Cross multiply
90,828,176.74x = 125,506,842.45 × 64,677,293.93 - Step 4: Simplify right side
90,828,176.74x = 8,117,442,939,364,851 - Step 5: Solve for x
x = 8,117,442,939,364,851/90,828,176.74 - Step 6: Final answer
x = 89,371,417.89
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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.