Finding the Fourth Proportional to 118,249,664.80, 177,374,497.20 and 77,905,703.20
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Solution
The fourth proportional to 118,249,664.80, 177,374,497.20 and 77,905,703.20 is: 116,858,554.80
Step by Step Solution
- Step 1: Write the proportion equation
118,249,664.80 : 177,374,497.20 = 77,905,703.20 : x - Step 2: Convert to fraction form
118,249,664.80/177,374,497.20 = 77,905,703.20/x - Step 3: Cross multiply
118,249,664.80x = 177,374,497.20 × 77,905,703.20 - Step 4: Simplify right side
118,249,664.80x = 13,818,484,934,112,430 - Step 5: Solve for x
x = 13,818,484,934,112,430/118,249,664.80 - Step 6: Final answer
x = 116,858,554.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.