Home / 213,996,402.31-320,893,415.10-82,900,079.74

Finding the Fourth Proportional to 213,996,402.31, 320,893,415.10 and 82,900,079.74

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Solution

The fourth proportional to 213,996,402.31, 320,893,415.10 and 82,900,079.74 is: 124,310,920.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,996,402.31 : 320,893,415.10 = 82,900,079.74 : x
  2. Step 2: Convert to fraction form
    213,996,402.31/320,893,415.10 = 82,900,079.74/x
  3. Step 3: Cross multiply
    213,996,402.31x = 320,893,415.10 × 82,900,079.74
  4. Step 4: Simplify right side
    213,996,402.31x = 26,602,089,699,830,920
  5. Step 5: Solve for x
    x = 26,602,089,699,830,920/213,996,402.31
  6. Step 6: Final answer
    x = 124,310,920.24

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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.