Finding the Fourth Proportional to 572,590,840.56, 790,185,807.36 and 318,296,076
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Solution
The fourth proportional to 572,590,840.56, 790,185,807.36 and 318,296,076 is: 439,254,392.45
Step by Step Solution
- Step 1: Write the proportion equation
572,590,840.56 : 790,185,807.36 = 318,296,076 : x - Step 2: Convert to fraction form
572,590,840.56/790,185,807.36 = 318,296,076/x - Step 3: Cross multiply
572,590,840.56x = 790,185,807.36 × 318,296,076 - Step 4: Simplify right side
572,590,840.56x = 251,513,041,793,579,936 - Step 5: Solve for x
x = 251,513,041,793,579,936/572,590,840.56 - Step 6: Final answer
x = 439,254,392.45
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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.