Home / 312,018,756.44-430,599,419.02-172,789,518.22

Finding the Fourth Proportional to 312,018,756.44, 430,599,419.02 and 172,789,518.22

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Solution

The fourth proportional to 312,018,756.44, 430,599,419.02 and 172,789,518.22 is: 238,457,030.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,018,756.44 : 430,599,419.02 = 172,789,518.22 : x
  2. Step 2: Convert to fraction form
    312,018,756.44/430,599,419.02 = 172,789,518.22/x
  3. Step 3: Cross multiply
    312,018,756.44x = 430,599,419.02 × 172,789,518.22
  4. Step 4: Simplify right side
    312,018,756.44x = 74,403,066,158,277,696
  5. Step 5: Solve for x
    x = 74,403,066,158,277,696/312,018,756.44
  6. Step 6: Final answer
    x = 238,457,030.62

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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.