Finding the Fourth Proportional to 982,872,708.93, 1,474,516,121.36 and 318,834,878.87
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Solution
The fourth proportional to 982,872,708.93, 1,474,516,121.36 and 318,834,878.87 is: 478,319,486.01
Step by Step Solution
- Step 1: Write the proportion equation
982,872,708.93 : 1,474,516,121.36 = 318,834,878.87 : x - Step 2: Convert to fraction form
982,872,708.93/1,474,516,121.36 = 318,834,878.87/x - Step 3: Cross multiply
982,872,708.93x = 1,474,516,121.36 × 318,834,878.87 - Step 4: Simplify right side
982,872,708.93x = 470,127,168,947,769,920 - Step 5: Solve for x
x = 470,127,168,947,769,920/982,872,708.93 - Step 6: Final answer
x = 478,319,486.01
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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.