Home / 260,554,143.14-390,843,784.53-85,673,305.40

Finding the Fourth Proportional to 260,554,143.14, 390,843,784.53 and 85,673,305.40

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Solution

The fourth proportional to 260,554,143.14, 390,843,784.53 and 85,673,305.40 is: 128,514,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,554,143.14 : 390,843,784.53 = 85,673,305.40 : x
  2. Step 2: Convert to fraction form
    260,554,143.14/390,843,784.53 = 85,673,305.40/x
  3. Step 3: Cross multiply
    260,554,143.14x = 390,843,784.53 × 85,673,305.40
  4. Step 4: Simplify right side
    260,554,143.14x = 33,484,878,917,315,416
  5. Step 5: Solve for x
    x = 33,484,878,917,315,416/260,554,143.14
  6. Step 6: Final answer
    x = 128,514,091.21

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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.