Home / 213,019,637.70-319,529,456.55-83,560,610.10

Finding the Fourth Proportional to 213,019,637.70, 319,529,456.55 and 83,560,610.10

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Solution

The fourth proportional to 213,019,637.70, 319,529,456.55 and 83,560,610.10 is: 125,340,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,019,637.70 : 319,529,456.55 = 83,560,610.10 : x
  2. Step 2: Convert to fraction form
    213,019,637.70/319,529,456.55 = 83,560,610.10/x
  3. Step 3: Cross multiply
    213,019,637.70x = 319,529,456.55 × 83,560,610.10
  4. Step 4: Simplify right side
    213,019,637.70x = 26,700,076,334,239,440
  5. Step 5: Solve for x
    x = 26,700,076,334,239,440/213,019,637.70
  6. Step 6: Final answer
    x = 125,340,915.15

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1.5x scale

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.