Home / 409,981,637.62-565,261,447.35-342,184,085.20

Finding the Fourth Proportional to 409,981,637.62, 565,261,447.35 and 342,184,085.20

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Solution

The fourth proportional to 409,981,637.62, 565,261,447.35 and 342,184,085.20 is: 471,785,693.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,981,637.62 : 565,261,447.35 = 342,184,085.20 : x
  2. Step 2: Convert to fraction form
    409,981,637.62/565,261,447.35 = 342,184,085.20/x
  3. Step 3: Cross multiply
    409,981,637.62x = 565,261,447.35 × 342,184,085.20
  4. Step 4: Simplify right side
    409,981,637.62x = 193,423,471,260,287,712
  5. Step 5: Solve for x
    x = 193,423,471,260,287,712/409,981,637.62
  6. Step 6: Final answer
    x = 471,785,693.58

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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.