Home / 309,210,961.60-463,872,429.60-155,470,110.40

Finding the Fourth Proportional to 309,210,961.60, 463,872,429.60 and 155,470,110.40

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Solution

The fourth proportional to 309,210,961.60, 463,872,429.60 and 155,470,110.40 is: 233,233,315.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,210,961.60 : 463,872,429.60 = 155,470,110.40 : x
  2. Step 2: Convert to fraction form
    309,210,961.60/463,872,429.60 = 155,470,110.40/x
  3. Step 3: Cross multiply
    309,210,961.60x = 463,872,429.60 × 155,470,110.40
  4. Step 4: Simplify right side
    309,210,961.60x = 72,118,297,841,428,240
  5. Step 5: Solve for x
    x = 72,118,297,841,428,240/309,210,961.60
  6. Step 6: Final answer
    x = 233,233,315.75

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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.