Home / 147,623,756.80-221,435,635.20-86,149,811.20

Finding the Fourth Proportional to 147,623,756.80, 221,435,635.20 and 86,149,811.20

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Solution

The fourth proportional to 147,623,756.80, 221,435,635.20 and 86,149,811.20 is: 129,224,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,623,756.80 : 221,435,635.20 = 86,149,811.20 : x
  2. Step 2: Convert to fraction form
    147,623,756.80/221,435,635.20 = 86,149,811.20/x
  3. Step 3: Cross multiply
    147,623,756.80x = 221,435,635.20 × 86,149,811.20
  4. Step 4: Simplify right side
    147,623,756.80x = 19,076,638,165,432,072
  5. Step 5: Solve for x
    x = 19,076,638,165,432,072/147,623,756.80
  6. Step 6: Final answer
    x = 129,224,716.80

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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.