Finding the Fourth Proportional to 26,879,154.77, 40,307,521.70 and 8,430,346.55
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Solution
The fourth proportional to 26,879,154.77, 40,307,521.70 and 8,430,346.55 is: 12,642,003.78
Step by Step Solution
- Step 1: Write the proportion equation
26,879,154.77 : 40,307,521.70 = 8,430,346.55 : x - Step 2: Convert to fraction form
26,879,154.77/40,307,521.70 = 8,430,346.55/x - Step 3: Cross multiply
26,879,154.77x = 40,307,521.70 × 8,430,346.55 - Step 4: Simplify right side
26,879,154.77x = 339,806,376,258,955.81 - Step 5: Solve for x
x = 339,806,376,258,955.81/26,879,154.77 - Step 6: Final answer
x = 12,642,003.78
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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.