Home / 210,829,767.24-290,929,193.46-128,314,432.20

Finding the Fourth Proportional to 210,829,767.24, 290,929,193.46 and 128,314,432.20

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Solution

The fourth proportional to 210,829,767.24, 290,929,193.46 and 128,314,432.20 is: 177,064,248.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,829,767.24 : 290,929,193.46 = 128,314,432.20 : x
  2. Step 2: Convert to fraction form
    210,829,767.24/290,929,193.46 = 128,314,432.20/x
  3. Step 3: Cross multiply
    210,829,767.24x = 290,929,193.46 × 128,314,432.20
  4. Step 4: Simplify right side
    210,829,767.24x = 37,330,414,269,223,848
  5. Step 5: Solve for x
    x = 37,330,414,269,223,848/210,829,767.24
  6. Step 6: Final answer
    x = 177,064,248.36

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1.5x scale

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.