Finding the Fourth Proportional to 935,156,657.95, 1,290,515,345.70 and 527,873,112.98
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Solution
The fourth proportional to 935,156,657.95, 1,290,515,345.70 and 527,873,112.98 is: 728,464,420.48
Step by Step Solution
- Step 1: Write the proportion equation
935,156,657.95 : 1,290,515,345.70 = 527,873,112.98 : x - Step 2: Convert to fraction form
935,156,657.95/1,290,515,345.70 = 527,873,112.98/x - Step 3: Cross multiply
935,156,657.95x = 1,290,515,345.70 × 527,873,112.98 - Step 4: Simplify right side
935,156,657.95x = 681,228,352,886,792,064 - Step 5: Solve for x
x = 681,228,352,886,792,064/935,156,657.95 - Step 6: Final answer
x = 728,464,420.48
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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.