Home / 570,175,389.96-786,842,044.56-309,415,005.96

Finding the Fourth Proportional to 570,175,389.96, 786,842,044.56 and 309,415,005.96

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Solution

The fourth proportional to 570,175,389.96, 786,842,044.56 and 309,415,005.96 is: 426,992,711.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,175,389.96 : 786,842,044.56 = 309,415,005.96 : x
  2. Step 2: Convert to fraction form
    570,175,389.96/786,842,044.56 = 309,415,005.96/x
  3. Step 3: Cross multiply
    570,175,389.96x = 786,842,044.56 × 309,415,005.96
  4. Step 4: Simplify right side
    570,175,389.96x = 243,460,735,907,110,944
  5. Step 5: Solve for x
    x = 243,460,735,907,110,944/570,175,389.96
  6. Step 6: Final answer
    x = 426,992,711.71

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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.