Finding the Fourth Proportional to 689,549,402.68, 951,598,271.46 and 376,303,793.32
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Solution
The fourth proportional to 689,549,402.68, 951,598,271.46 and 376,303,793.32 is: 519,310,201.52
Step by Step Solution
- Step 1: Write the proportion equation
689,549,402.68 : 951,598,271.46 = 376,303,793.32 : x - Step 2: Convert to fraction form
689,549,402.68/951,598,271.46 = 376,303,793.32/x - Step 3: Cross multiply
689,549,402.68x = 951,598,271.46 × 376,303,793.32 - Step 4: Simplify right side
689,549,402.68x = 358,090,039,267,153,088 - Step 5: Solve for x
x = 358,090,039,267,153,088/689,549,402.68 - Step 6: Final answer
x = 519,310,201.52
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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.