Finding the Fourth Proportional to 785,056,657,888.52, 1,083,378,189,972.70 and 424,174,472,386.28
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Solution
The fourth proportional to 785,056,657,888.52, 1,083,378,189,972.70 and 424,174,472,386.28 is: 585,360,773,020.45
Step by Step Solution
- Step 1: Write the proportion equation
785,056,657,888.52 : 1,083,378,189,972.70 = 424,174,472,386.28 : x - Step 2: Convert to fraction form
785,056,657,888.52/1,083,378,189,972.70 = 424,174,472,386.28/x - Step 3: Cross multiply
785,056,657,888.52x = 1,083,378,189,972.70 × 424,174,472,386.28 - Step 4: Simplify right side
785,056,657,888.52x = 459,541,372,126,473,035,448,320 - Step 5: Solve for x
x = 459,541,372,126,473,035,448,320/785,056,657,888.52 - Step 6: Final answer
x = 585,360,773,020.45
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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.