Finding the Fourth Proportional to 77,132,408.76, 106,442,432.10 and 42,325,681.68
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Solution
The fourth proportional to 77,132,408.76, 106,442,432.10 and 42,325,681.68 is: 58,409,280.49
Step by Step Solution
- Step 1: Write the proportion equation
77,132,408.76 : 106,442,432.10 = 42,325,681.68 : x - Step 2: Convert to fraction form
77,132,408.76/106,442,432.10 = 42,325,681.68/x - Step 3: Cross multiply
77,132,408.76x = 106,442,432.10 × 42,325,681.68 - Step 4: Simplify right side
77,132,408.76x = 4,505,248,498,309,614 - Step 5: Solve for x
x = 4,505,248,498,309,614/77,132,408.76 - Step 6: Final answer
x = 58,409,280.49
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.