Home / 84,495,864.40-126,743,796.60-20,670,456.40

Finding the Fourth Proportional to 84,495,864.40, 126,743,796.60 and 20,670,456.40

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Solution

The fourth proportional to 84,495,864.40, 126,743,796.60 and 20,670,456.40 is: 31,005,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,495,864.40 : 126,743,796.60 = 20,670,456.40 : x
  2. Step 2: Convert to fraction form
    84,495,864.40/126,743,796.60 = 20,670,456.40/x
  3. Step 3: Cross multiply
    84,495,864.40x = 126,743,796.60 × 20,670,456.40
  4. Step 4: Simplify right side
    84,495,864.40x = 2,619,852,121,590,768
  5. Step 5: Solve for x
    x = 2,619,852,121,590,768/84,495,864.40
  6. Step 6: Final answer
    x = 31,005,684.60

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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.