Finding the Fourth Proportional to 83,742,814.10, 115,484,881.51 and 55,440,385.10
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Solution
The fourth proportional to 83,742,814.10, 115,484,881.51 and 55,440,385.10 is: 76,454,635.22
Step by Step Solution
- Step 1: Write the proportion equation
83,742,814.10 : 115,484,881.51 = 55,440,385.10 : x - Step 2: Convert to fraction form
83,742,814.10/115,484,881.51 = 55,440,385.10/x - Step 3: Cross multiply
83,742,814.10x = 115,484,881.51 × 55,440,385.10 - Step 4: Simplify right side
83,742,814.10x = 6,402,526,304,292,380 - Step 5: Solve for x
x = 6,402,526,304,292,380/83,742,814.10 - Step 6: Final answer
x = 76,454,635.22
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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.