Finding the Fourth Proportional to 970,376,803.48, 1,455,032,158.26 and 478,006,704.28
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Solution
The fourth proportional to 970,376,803.48, 1,455,032,158.26 and 478,006,704.28 is: 716,747,477.99
Step by Step Solution
- Step 1: Write the proportion equation
970,376,803.48 : 1,455,032,158.26 = 478,006,704.28 : x - Step 2: Convert to fraction form
970,376,803.48/1,455,032,158.26 = 478,006,704.28/x - Step 3: Cross multiply
970,376,803.48x = 1,455,032,158.26 × 478,006,704.28 - Step 4: Simplify right side
970,376,803.48x = 695,515,126,591,277,952 - Step 5: Solve for x
x = 695,515,126,591,277,952/970,376,803.48 - Step 6: Final answer
x = 716,747,477.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.