Finding the Fourth Proportional to 918,316,350.50, 1,267,264,461.38 and 516,429,980.08
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Solution
The fourth proportional to 918,316,350.50, 1,267,264,461.38 and 516,429,980.08 is: 712,666,566.58
Step by Step Solution
- Step 1: Write the proportion equation
918,316,350.50 : 1,267,264,461.38 = 516,429,980.08 : x - Step 2: Convert to fraction form
918,316,350.50/1,267,264,461.38 = 516,429,980.08/x - Step 3: Cross multiply
918,316,350.50x = 1,267,264,461.38 × 516,429,980.08 - Step 4: Simplify right side
918,316,350.50x = 654,453,360,546,565,376 - Step 5: Solve for x
x = 654,453,360,546,565,376/918,316,350.50 - Step 6: Final answer
x = 712,666,566.58
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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.