Finding the Fourth Proportional to 776,674,139.08, 1,071,810,270.68 and 419,441,885.68
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Solution
The fourth proportional to 776,674,139.08, 1,071,810,270.68 and 419,441,885.68 is: 578,829,779.96
Step by Step Solution
- Step 1: Write the proportion equation
776,674,139.08 : 1,071,810,270.68 = 419,441,885.68 : x - Step 2: Convert to fraction form
776,674,139.08/1,071,810,270.68 = 419,441,885.68/x - Step 3: Cross multiply
776,674,139.08x = 1,071,810,270.68 × 419,441,885.68 - Step 4: Simplify right side
776,674,139.08x = 449,562,121,025,210,432 - Step 5: Solve for x
x = 449,562,121,025,210,432/776,674,139.08 - Step 6: Final answer
x = 578,829,779.96
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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.