Finding the Fourth Proportional to 513,124,585.74, 708,084,656.16 and 290,092,932.72
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Solution
The fourth proportional to 513,124,585.74, 708,084,656.16 and 290,092,932.72 is: 400,312,828.95
Step by Step Solution
- Step 1: Write the proportion equation
513,124,585.74 : 708,084,656.16 = 290,092,932.72 : x - Step 2: Convert to fraction form
513,124,585.74/708,084,656.16 = 290,092,932.72/x - Step 3: Cross multiply
513,124,585.74x = 708,084,656.16 × 290,092,932.72 - Step 4: Simplify right side
513,124,585.74x = 205,410,354,519,487,232 - Step 5: Solve for x
x = 205,410,354,519,487,232/513,124,585.74 - Step 6: Final answer
x = 400,312,828.95
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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.