Finding the Fourth Proportional to 749,909,417.68, 1,034,829,343.20 and 415,362,107.44
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Solution
The fourth proportional to 749,909,417.68, 1,034,829,343.20 and 415,362,107.44 is: 573,174,421.73
Step by Step Solution
- Step 1: Write the proportion equation
749,909,417.68 : 1,034,829,343.20 = 415,362,107.44 : x - Step 2: Convert to fraction form
749,909,417.68/1,034,829,343.20 = 415,362,107.44/x - Step 3: Cross multiply
749,909,417.68x = 1,034,829,343.20 × 415,362,107.44 - Step 4: Simplify right side
749,909,417.68x = 429,828,896,832,303,040 - Step 5: Solve for x
x = 429,828,896,832,303,040/749,909,417.68 - Step 6: Final answer
x = 573,174,421.73
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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.