Home / 636,931,613.40-955,397,420.10-206,110,109.40

Finding the Fourth Proportional to 636,931,613.40, 955,397,420.10 and 206,110,109.40

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Solution

The fourth proportional to 636,931,613.40, 955,397,420.10 and 206,110,109.40 is: 309,165,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,931,613.40 : 955,397,420.10 = 206,110,109.40 : x
  2. Step 2: Convert to fraction form
    636,931,613.40/955,397,420.10 = 206,110,109.40/x
  3. Step 3: Cross multiply
    636,931,613.40x = 955,397,420.10 × 206,110,109.40
  4. Step 4: Simplify right side
    636,931,613.40x = 196,917,066,777,288,768
  5. Step 5: Solve for x
    x = 196,917,066,777,288,768/636,931,613.40
  6. Step 6: Final answer
    x = 309,165,164.10

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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.