Finding the Fourth Proportional to 85,312,312,380.08, 117,729,548,249.46 and 47,249,702,159.93
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Solution
The fourth proportional to 85,312,312,380.08, 117,729,548,249.46 and 47,249,702,159.93 is: 65,203,789,875.34
Step by Step Solution
- Step 1: Write the proportion equation
85,312,312,380.08 : 117,729,548,249.46 = 47,249,702,159.93 : x - Step 2: Convert to fraction form
85,312,312,380.08/117,729,548,249.46 = 47,249,702,159.93/x - Step 3: Cross multiply
85,312,312,380.08x = 117,729,548,249.46 × 47,249,702,159.93 - Step 4: Simplify right side
85,312,312,380.08x = 5,562,686,090,210,094,088,192 - Step 5: Solve for x
x = 5,562,686,090,210,094,088,192/85,312,312,380.08 - Step 6: Final answer
x = 65,203,789,875.34
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1.5x scale
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.