Finding the Fourth Proportional to 279,828,408.08, 386,163,718.44 and 156,077,061.68
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Solution
The fourth proportional to 279,828,408.08, 386,163,718.44 and 156,077,061.68 is: 215,386,632.53
Step by Step Solution
- Step 1: Write the proportion equation
279,828,408.08 : 386,163,718.44 = 156,077,061.68 : x - Step 2: Convert to fraction form
279,828,408.08/386,163,718.44 = 156,077,061.68/x - Step 3: Cross multiply
279,828,408.08x = 386,163,718.44 × 156,077,061.68 - Step 4: Simplify right side
279,828,408.08x = 60,271,298,501,538,032 - Step 5: Solve for x
x = 60,271,298,501,538,032/279,828,408.08 - Step 6: Final answer
x = 215,386,632.53
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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.