Home / 239,698,632.35-330,689,991.21-139,209,962.69

Finding the Fourth Proportional to 239,698,632.35, 330,689,991.21 and 139,209,962.69

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Solution

The fourth proportional to 239,698,632.35, 330,689,991.21 and 139,209,962.69 is: 192,055,085.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,698,632.35 : 330,689,991.21 = 139,209,962.69 : x
  2. Step 2: Convert to fraction form
    239,698,632.35/330,689,991.21 = 139,209,962.69/x
  3. Step 3: Cross multiply
    239,698,632.35x = 330,689,991.21 × 139,209,962.69
  4. Step 4: Simplify right side
    239,698,632.35x = 46,035,341,338,300,528
  5. Step 5: Solve for x
    x = 46,035,341,338,300,528/239,698,632.35
  6. Step 6: Final answer
    x = 192,055,085.53

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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.