Finding the Fourth Proportional to 1,062,886,487.80, 1,594,329,731.70 and 488,457,815.80
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Solution
The fourth proportional to 1,062,886,487.80, 1,594,329,731.70 and 488,457,815.80 is: 732,686,723.70
Step by Step Solution
- Step 1: Write the proportion equation
1,062,886,487.80 : 1,594,329,731.70 = 488,457,815.80 : x - Step 2: Convert to fraction form
1,062,886,487.80/1,594,329,731.70 = 488,457,815.80/x - Step 3: Cross multiply
1,062,886,487.80x = 1,594,329,731.70 × 488,457,815.80 - Step 4: Simplify right side
1,062,886,487.80x = 778,762,818,411,182,080 - Step 5: Solve for x
x = 778,762,818,411,182,080/1,062,886,487.80 - Step 6: Final answer
x = 732,686,723.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.