Finding the Fourth Proportional to 15,316,312.95, 21,136,515.23 and 8,346,992.15
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Solution
The fourth proportional to 15,316,312.95, 21,136,515.23 and 8,346,992.15 is: 11,518,851.00
Step by Step Solution
- Step 1: Write the proportion equation
15,316,312.95 : 21,136,515.23 = 8,346,992.15 : x - Step 2: Convert to fraction form
15,316,312.95/21,136,515.23 = 8,346,992.15/x - Step 3: Cross multiply
15,316,312.95x = 21,136,515.23 × 8,346,992.15 - Step 4: Simplify right side
15,316,312.95x = 176,426,326,703,165.47 - Step 5: Solve for x
x = 176,426,326,703,165.47/15,316,312.95 - Step 6: Final answer
x = 11,518,851.00
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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.