Finding the Fourth Proportional to 1,210,157,539.43, 1,815,764,303.95 and 423,775,603.87
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Solution
The fourth proportional to 1,210,157,539.43, 1,815,764,303.95 and 423,775,603.87 is: 635,848,300.17
Step by Step Solution
- Step 1: Write the proportion equation
1,210,157,539.43 : 1,815,764,303.95 = 423,775,603.87 : x - Step 2: Convert to fraction form
1,210,157,539.43/1,815,764,303.95 = 423,775,603.87/x - Step 3: Cross multiply
1,210,157,539.43x = 1,815,764,303.95 × 423,775,603.87 - Step 4: Simplify right side
1,210,157,539.43x = 769,476,614,386,402,688 - Step 5: Solve for x
x = 769,476,614,386,402,688/1,210,157,539.43 - Step 6: Final answer
x = 635,848,300.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.