Finding the Fourth Proportional to 905,518,226.52, 1,249,620,397.94 and 509,037,744.96
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Solution
The fourth proportional to 905,518,226.52, 1,249,620,397.94 and 509,037,744.96 is: 702,475,036.72
Step by Step Solution
- Step 1: Write the proportion equation
905,518,226.52 : 1,249,620,397.94 = 509,037,744.96 : x - Step 2: Convert to fraction form
905,518,226.52/1,249,620,397.94 = 509,037,744.96/x - Step 3: Cross multiply
905,518,226.52x = 1,249,620,397.94 × 509,037,744.96 - Step 4: Simplify right side
905,518,226.52x = 636,103,949,423,395,456 - Step 5: Solve for x
x = 636,103,949,423,395,456/905,518,226.52 - Step 6: Final answer
x = 702,475,036.72
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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.