Finding the Fourth Proportional to 124,574,897.28, 171,888,425.28 and 69,562,289.28
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Solution
The fourth proportional to 124,574,897.28, 171,888,425.28 and 69,562,289.28 is: 95,982,036.70
Step by Step Solution
- Step 1: Write the proportion equation
124,574,897.28 : 171,888,425.28 = 69,562,289.28 : x - Step 2: Convert to fraction form
124,574,897.28/171,888,425.28 = 69,562,289.28/x - Step 3: Cross multiply
124,574,897.28x = 171,888,425.28 × 69,562,289.28 - Step 4: Simplify right side
124,574,897.28x = 11,956,952,363,211,026 - Step 5: Solve for x
x = 11,956,952,363,211,026/124,574,897.28 - Step 6: Final answer
x = 95,982,036.70
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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.