Finding the Fourth Proportional to 738,400,398.49, 1,018,771,328.71 and 425,126,557.81
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Solution
The fourth proportional to 738,400,398.49, 1,018,771,328.71 and 425,126,557.81 is: 586,547,283.90
Step by Step Solution
- Step 1: Write the proportion equation
738,400,398.49 : 1,018,771,328.71 = 425,126,557.81 : x - Step 2: Convert to fraction form
738,400,398.49/1,018,771,328.71 = 425,126,557.81/x - Step 3: Cross multiply
738,400,398.49x = 1,018,771,328.71 × 425,126,557.81 - Step 4: Simplify right side
738,400,398.49x = 433,106,748,166,060,480 - Step 5: Solve for x
x = 433,106,748,166,060,480/738,400,398.49 - Step 6: Final answer
x = 586,547,283.90
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1.5x scale
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.