Finding the Fourth Proportional to 1,513,433,587.26, 2,088,537,426.63 and 818,072,563.26
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Solution
The fourth proportional to 1,513,433,587.26, 2,088,537,426.63 and 818,072,563.26 is: 1,128,939,637.95
Step by Step Solution
- Step 1: Write the proportion equation
1,513,433,587.26 : 2,088,537,426.63 = 818,072,563.26 : x - Step 2: Convert to fraction form
1,513,433,587.26/2,088,537,426.63 = 818,072,563.26/x - Step 3: Cross multiply
1,513,433,587.26x = 2,088,537,426.63 × 818,072,563.26 - Step 4: Simplify right side
1,513,433,587.26x = 1,708,575,166,067,648,256 - Step 5: Solve for x
x = 1,708,575,166,067,648,256/1,513,433,587.26 - Step 6: Final answer
x = 1,128,939,637.95
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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.