Finding the Fourth Proportional to 99,488,259.91, 149,316,239.45 and 42,021,773.11
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Solution
The fourth proportional to 99,488,259.91, 149,316,239.45 and 42,021,773.11 is: 63,068,075.99
Step by Step Solution
- Step 1: Write the proportion equation
99,488,259.91 : 149,316,239.45 = 42,021,773.11 : x - Step 2: Convert to fraction form
99,488,259.91/149,316,239.45 = 42,021,773.11/x - Step 3: Cross multiply
99,488,259.91x = 149,316,239.45 × 42,021,773.11 - Step 4: Simplify right side
99,488,259.91x = 6,274,533,135,806,331 - Step 5: Solve for x
x = 6,274,533,135,806,331/99,488,259.91 - Step 6: Final answer
x = 63,068,075.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.