Finding the Fourth Proportional to 69,478,482,252.21, 103,749,854,198.86 and 56,740,824,995.68
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Solution
The fourth proportional to 69,478,482,252.21, 103,749,854,198.86 and 56,740,824,995.68 is: 84,729,143,896.02
Step by Step Solution
- Step 1: Write the proportion equation
69,478,482,252.21 : 103,749,854,198.86 = 56,740,824,995.68 : x - Step 2: Convert to fraction form
69,478,482,252.21/103,749,854,198.86 = 56,740,824,995.68/x - Step 3: Cross multiply
69,478,482,252.21x = 103,749,854,198.86 × 56,740,824,995.68 - Step 4: Simplify right side
69,478,482,252.21x = 5,886,852,320,424,830,697,472 - Step 5: Solve for x
x = 5,886,852,320,424,830,697,472/69,478,482,252.21 - Step 6: Final answer
x = 84,729,143,896.02
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.