Finding the Fourth Proportional to 259,128,447.95, 357,599,637.57 and 147,617,636.06
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Solution
The fourth proportional to 259,128,447.95, 357,599,637.57 and 147,617,636.06 is: 203,713,693.23
Step by Step Solution
- Step 1: Write the proportion equation
259,128,447.95 : 357,599,637.57 = 147,617,636.06 : x - Step 2: Convert to fraction form
259,128,447.95/357,599,637.57 = 147,617,636.06/x - Step 3: Cross multiply
259,128,447.95x = 357,599,637.57 × 147,617,636.06 - Step 4: Simplify right side
259,128,447.95x = 52,788,013,152,208,168 - Step 5: Solve for x
x = 52,788,013,152,208,168/259,128,447.95 - Step 6: Final answer
x = 203,713,693.23
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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.