Finding the Fourth Proportional to 938,217,331.09, 1,294,736,363.80 and 514,838,075.96
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Solution
The fourth proportional to 938,217,331.09, 1,294,736,363.80 and 514,838,075.96 is: 710,474,595.09
Step by Step Solution
- Step 1: Write the proportion equation
938,217,331.09 : 1,294,736,363.80 = 514,838,075.96 : x - Step 2: Convert to fraction form
938,217,331.09/1,294,736,363.80 = 514,838,075.96/x - Step 3: Cross multiply
938,217,331.09x = 1,294,736,363.80 × 514,838,075.96 - Step 4: Simplify right side
938,217,331.09x = 666,579,578,407,764,864 - Step 5: Solve for x
x = 666,579,578,407,764,864/938,217,331.09 - Step 6: Final answer
x = 710,474,595.09
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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.