Finding the Fourth Proportional to 1,625,480,646.12, 2,243,349,378.48 and 911,209,117
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Solution
The fourth proportional to 1,625,480,646.12, 2,243,349,378.48 and 911,209,117 is: 1,257,572,897.69
Step by Step Solution
- Step 1: Write the proportion equation
1,625,480,646.12 : 2,243,349,378.48 = 911,209,117 : x - Step 2: Convert to fraction form
1,625,480,646.12/2,243,349,378.48 = 911,209,117/x - Step 3: Cross multiply
1,625,480,646.12x = 2,243,349,378.48 × 911,209,117 - Step 4: Simplify right side
1,625,480,646.12x = 2,044,160,406,287,259,648 - Step 5: Solve for x
x = 2,044,160,406,287,259,648/1,625,480,646.12 - Step 6: Final answer
x = 1,257,572,897.69
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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.