Home / 413,514,880.80-620,272,321.20-260,459,872.80

Finding the Fourth Proportional to 413,514,880.80, 620,272,321.20 and 260,459,872.80

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Solution

The fourth proportional to 413,514,880.80, 620,272,321.20 and 260,459,872.80 is: 390,689,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,514,880.80 : 620,272,321.20 = 260,459,872.80 : x
  2. Step 2: Convert to fraction form
    413,514,880.80/620,272,321.20 = 260,459,872.80/x
  3. Step 3: Cross multiply
    413,514,880.80x = 620,272,321.20 × 260,459,872.80
  4. Step 4: Simplify right side
    413,514,880.80x = 161,556,049,881,112,768
  5. Step 5: Solve for x
    x = 161,556,049,881,112,768/413,514,880.80
  6. Step 6: Final answer
    x = 390,689,809.20

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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.