Finding the Fourth Proportional to 811,617,031.68, 1,119,340,667.16 and 564,688,285.44
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Solution
The fourth proportional to 811,617,031.68, 1,119,340,667.16 and 564,688,285.44 is: 778,789,179.49
Step by Step Solution
- Step 1: Write the proportion equation
811,617,031.68 : 1,119,340,667.16 = 564,688,285.44 : x - Step 2: Convert to fraction form
811,617,031.68/1,119,340,667.16 = 564,688,285.44/x - Step 3: Cross multiply
811,617,031.68x = 1,119,340,667.16 × 564,688,285.44 - Step 4: Simplify right side
811,617,031.68x = 632,078,562,161,846,272 - Step 5: Solve for x
x = 632,078,562,161,846,272/811,617,031.68 - Step 6: Final answer
x = 778,789,179.49
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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.