Finding the Fourth Proportional to 81,709,888,294.62, 112,761,643,214.43 and 45,580,663,756.71
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Solution
The fourth proportional to 81,709,888,294.62, 112,761,643,214.43 and 45,580,663,756.71 is: 62,902,430,186.65
Step by Step Solution
- Step 1: Write the proportion equation
81,709,888,294.62 : 112,761,643,214.43 = 45,580,663,756.71 : x - Step 2: Convert to fraction form
81,709,888,294.62/112,761,643,214.43 = 45,580,663,756.71/x - Step 3: Cross multiply
81,709,888,294.62x = 112,761,643,214.43 × 45,580,663,756.71 - Step 4: Simplify right side
81,709,888,294.62x = 5,139,750,544,011,033,575,424 - Step 5: Solve for x
x = 5,139,750,544,011,033,575,424/81,709,888,294.62 - Step 6: Final answer
x = 62,902,430,186.65
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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.