Home / 355,236,698.15-490,201,757.04-206,547,270.40

Finding the Fourth Proportional to 355,236,698.15, 490,201,757.04 and 206,547,270.40

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Solution

The fourth proportional to 355,236,698.15, 490,201,757.04 and 206,547,270.40 is: 285,020,763.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,236,698.15 : 490,201,757.04 = 206,547,270.40 : x
  2. Step 2: Convert to fraction form
    355,236,698.15/490,201,757.04 = 206,547,270.40/x
  3. Step 3: Cross multiply
    355,236,698.15x = 490,201,757.04 × 206,547,270.40
  4. Step 4: Simplify right side
    355,236,698.15x = 101,249,834,863,283,280
  5. Step 5: Solve for x
    x = 101,249,834,863,283,280/355,236,698.15
  6. Step 6: Final answer
    x = 285,020,763.31

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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.