Home / 640,162,430.24-960,132,370.80-179,991,386.40

Finding the Fourth Proportional to 640,162,430.24, 960,132,370.80 and 179,991,386.40

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Solution

The fourth proportional to 640,162,430.24, 960,132,370.80 and 179,991,386.40 is: 269,955,793.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,162,430.24 : 960,132,370.80 = 179,991,386.40 : x
  2. Step 2: Convert to fraction form
    640,162,430.24/960,132,370.80 = 179,991,386.40/x
  3. Step 3: Cross multiply
    640,162,430.24x = 960,132,370.80 × 179,991,386.40
  4. Step 4: Simplify right side
    640,162,430.24x = 172,815,556,547,810,880
  5. Step 5: Solve for x
    x = 172,815,556,547,810,880/640,162,430.24
  6. Step 6: Final answer
    x = 269,955,793.07

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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.