Finding the Fourth Proportional to 943,037,512.68, 1,291,966,001.61 and 907,692,679.62
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Solution
The fourth proportional to 943,037,512.68, 1,291,966,001.61 and 907,692,679.62 is: 1,243,543,407.56
Step by Step Solution
- Step 1: Write the proportion equation
943,037,512.68 : 1,291,966,001.61 = 907,692,679.62 : x - Step 2: Convert to fraction form
943,037,512.68/1,291,966,001.61 = 907,692,679.62/x - Step 3: Cross multiply
943,037,512.68x = 1,291,966,001.61 × 907,692,679.62 - Step 4: Simplify right side
943,037,512.68x = 1,172,708,081,974,779,648 - Step 5: Solve for x
x = 1,172,708,081,974,779,648/943,037,512.68 - Step 6: Final answer
x = 1,243,543,407.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.