Finding the Fourth Proportional to 77,031,595.92, 106,241,618.01 and 67,719,254.95
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Solution
The fourth proportional to 77,031,595.92, 106,241,618.01 and 67,719,254.95 is: 93,398,080.75
Step by Step Solution
- Step 1: Write the proportion equation
77,031,595.92 : 106,241,618.01 = 67,719,254.95 : x - Step 2: Convert to fraction form
77,031,595.92/106,241,618.01 = 67,719,254.95/x - Step 3: Cross multiply
77,031,595.92x = 106,241,618.01 × 67,719,254.95 - Step 4: Simplify right side
77,031,595.92x = 7,194,603,216,319,702 - Step 5: Solve for x
x = 7,194,603,216,319,702/77,031,595.92 - Step 6: Final answer
x = 93,398,080.75
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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.