Finding the Fourth Proportional to 618,098,688,085.95, 927,148,032,128.90 and 518,919,042,901.95
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Solution
The fourth proportional to 618,098,688,085.95, 927,148,032,128.90 and 518,919,042,901.95 is: 778,378,564,352.90
Step by Step Solution
- Step 1: Write the proportion equation
618,098,688,085.95 : 927,148,032,128.90 = 518,919,042,901.95 : x - Step 2: Convert to fraction form
618,098,688,085.95/927,148,032,128.90 = 518,919,042,901.95/x - Step 3: Cross multiply
618,098,688,085.95x = 927,148,032,128.90 × 518,919,042,901.95 - Step 4: Simplify right side
618,098,688,085.95x = 481,114,769,460,755,209,125,888 - Step 5: Solve for x
x = 481,114,769,460,755,209,125,888/618,098,688,085.95 - Step 6: Final answer
x = 778,378,564,352.90
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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.