Home / 486,986,808.10-672,023,790.84-263,963,701.35

Finding the Fourth Proportional to 486,986,808.10, 672,023,790.84 and 263,963,701.35

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Solution

The fourth proportional to 486,986,808.10, 672,023,790.84 and 263,963,701.35 is: 364,260,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,986,808.10 : 672,023,790.84 = 263,963,701.35 : x
  2. Step 2: Convert to fraction form
    486,986,808.10/672,023,790.84 = 263,963,701.35/x
  3. Step 3: Cross multiply
    486,986,808.10x = 672,023,790.84 × 263,963,701.35
  4. Step 4: Simplify right side
    486,986,808.10x = 177,389,887,228,547,968
  5. Step 5: Solve for x
    x = 177,389,887,228,547,968/486,986,808.10
  6. Step 6: Final answer
    x = 364,260,148.90

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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.