Finding the Fourth Proportional to 69,867,163.17, 96,417,338.31 and 38,506,331.61
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Solution
The fourth proportional to 69,867,163.17, 96,417,338.31 and 38,506,331.61 is: 53,139,097.59
Step by Step Solution
- Step 1: Write the proportion equation
69,867,163.17 : 96,417,338.31 = 38,506,331.61 : x - Step 2: Convert to fraction form
69,867,163.17/96,417,338.31 = 38,506,331.61/x - Step 3: Cross multiply
69,867,163.17x = 96,417,338.31 × 38,506,331.61 - Step 4: Simplify right side
69,867,163.17x = 3,712,678,001,918,417 - Step 5: Solve for x
x = 3,712,678,001,918,417/69,867,163.17 - Step 6: Final answer
x = 53,139,097.59
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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.