Finding the Fourth Proportional to 402,640,963.90, 603,984,130.94 and 122,530,988.14
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Solution
The fourth proportional to 402,640,963.90, 603,984,130.94 and 122,530,988.14 is: 183,803,385.70
Step by Step Solution
- Step 1: Write the proportion equation
402,640,963.90 : 603,984,130.94 = 122,530,988.14 : x - Step 2: Convert to fraction form
402,640,963.90/603,984,130.94 = 122,530,988.14/x - Step 3: Cross multiply
402,640,963.90x = 603,984,130.94 × 122,530,988.14 - Step 4: Simplify right side
402,640,963.90x = 74,006,772,387,148,112 - Step 5: Solve for x
x = 74,006,772,387,148,112/402,640,963.90 - Step 6: Final answer
x = 183,803,385.70
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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.