Home / 256,608,215.40-384,912,323.10-84,102,466.80

Finding the Fourth Proportional to 256,608,215.40, 384,912,323.10 and 84,102,466.80

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Solution

The fourth proportional to 256,608,215.40, 384,912,323.10 and 84,102,466.80 is: 126,153,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,608,215.40 : 384,912,323.10 = 84,102,466.80 : x
  2. Step 2: Convert to fraction form
    256,608,215.40/384,912,323.10 = 84,102,466.80/x
  3. Step 3: Cross multiply
    256,608,215.40x = 384,912,323.10 × 84,102,466.80
  4. Step 4: Simplify right side
    256,608,215.40x = 32,372,075,874,428,624
  5. Step 5: Solve for x
    x = 32,372,075,874,428,624/256,608,215.40
  6. Step 6: Final answer
    x = 126,153,700.20

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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.