Finding the Fourth Proportional to 935,441,263.68, 1,290,893,285.20 and 517,744,606.56
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Solution
The fourth proportional to 935,441,263.68, 1,290,893,285.20 and 517,744,606.56 is: 714,478,890.34
Step by Step Solution
- Step 1: Write the proportion equation
935,441,263.68 : 1,290,893,285.20 = 517,744,606.56 : x - Step 2: Convert to fraction form
935,441,263.68/1,290,893,285.20 = 517,744,606.56/x - Step 3: Cross multiply
935,441,263.68x = 1,290,893,285.20 × 517,744,606.56 - Step 4: Simplify right side
935,441,263.68x = 668,353,036,056,819,840 - Step 5: Solve for x
x = 668,353,036,056,819,840/935,441,263.68 - Step 6: Final answer
x = 714,478,890.34
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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.