Finding the Fourth Proportional to 828,799,246.40, 1,243,646,767.20 and 368,808,411.20
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Solution
The fourth proportional to 828,799,246.40, 1,243,646,767.20 and 368,808,411.20 is: 553,411,927.31
Step by Step Solution
- Step 1: Write the proportion equation
828,799,246.40 : 1,243,646,767.20 = 368,808,411.20 : x - Step 2: Convert to fraction form
828,799,246.40/1,243,646,767.20 = 368,808,411.20/x - Step 3: Cross multiply
828,799,246.40x = 1,243,646,767.20 × 368,808,411.20 - Step 4: Simplify right side
828,799,246.40x = 458,667,388,305,048,256 - Step 5: Solve for x
x = 458,667,388,305,048,256/828,799,246.40 - Step 6: Final answer
x = 553,411,927.31
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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.