Finding the Fourth Proportional to 291,334,670.96, 402,037,153.98 and 159,172,829.70
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Solution
The fourth proportional to 291,334,670.96, 402,037,153.98 and 159,172,829.70 is: 219,655,941.51
Step by Step Solution
- Step 1: Write the proportion equation
291,334,670.96 : 402,037,153.98 = 159,172,829.70 : x - Step 2: Convert to fraction form
291,334,670.96/402,037,153.98 = 159,172,829.70/x - Step 3: Cross multiply
291,334,670.96x = 402,037,153.98 × 159,172,829.70 - Step 4: Simplify right side
291,334,670.96x = 63,993,391,443,531,216 - Step 5: Solve for x
x = 63,993,391,443,531,216/291,334,670.96 - Step 6: Final answer
x = 219,655,941.51
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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.