Home / 65,221,985.16-90,006,631.78-35,855,206.68

Finding the Fourth Proportional to 65,221,985.16, 90,006,631.78 and 35,855,206.68

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Solution

The fourth proportional to 65,221,985.16, 90,006,631.78 and 35,855,206.68 is: 49,480,345.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,221,985.16 : 90,006,631.78 = 35,855,206.68 : x
  2. Step 2: Convert to fraction form
    65,221,985.16/90,006,631.78 = 35,855,206.68/x
  3. Step 3: Cross multiply
    65,221,985.16x = 90,006,631.78 × 35,855,206.68
  4. Step 4: Simplify right side
    65,221,985.16x = 3,227,206,385,042,556.50
  5. Step 5: Solve for x
    x = 3,227,206,385,042,556.50/65,221,985.16
  6. Step 6: Final answer
    x = 49,480,345.89

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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.