Finding the Fourth Proportional to 929,712,841.92, 1,283,143,206.96 and 706,326,930.36
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Solution
The fourth proportional to 929,712,841.92, 1,283,143,206.96 and 706,326,930.36 is: 974,837,134.35
Step by Step Solution
- Step 1: Write the proportion equation
929,712,841.92 : 1,283,143,206.96 = 706,326,930.36 : x - Step 2: Convert to fraction form
929,712,841.92/1,283,143,206.96 = 706,326,930.36/x - Step 3: Cross multiply
929,712,841.92x = 1,283,143,206.96 × 706,326,930.36 - Step 4: Simplify right side
929,712,841.92x = 906,318,602,584,343,040 - Step 5: Solve for x
x = 906,318,602,584,343,040/929,712,841.92 - Step 6: Final answer
x = 974,837,134.35
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1.5x scale
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.