Home / 313,518,500.24-470,014,686.95-138,613,295.52

Finding the Fourth Proportional to 313,518,500.24, 470,014,686.95 and 138,613,295.52

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Solution

The fourth proportional to 313,518,500.24, 470,014,686.95 and 138,613,295.52 is: 207,803,637.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,518,500.24 : 470,014,686.95 = 138,613,295.52 : x
  2. Step 2: Convert to fraction form
    313,518,500.24/470,014,686.95 = 138,613,295.52/x
  3. Step 3: Cross multiply
    313,518,500.24x = 470,014,686.95 × 138,613,295.52
  4. Step 4: Simplify right side
    313,518,500.24x = 65,150,284,700,247,576
  5. Step 5: Solve for x
    x = 65,150,284,700,247,576/313,518,500.24
  6. Step 6: Final answer
    x = 207,803,637.27

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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.