Home / 294,012,126-440,984,531.40-78,618,170.16

Finding the Fourth Proportional to 294,012,126, 440,984,531.40 and 78,618,170.16

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Solution

The fourth proportional to 294,012,126, 440,984,531.40 and 78,618,170.16 is: 117,918,255.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,012,126 : 440,984,531.40 = 78,618,170.16 : x
  2. Step 2: Convert to fraction form
    294,012,126/440,984,531.40 = 78,618,170.16/x
  3. Step 3: Cross multiply
    294,012,126x = 440,984,531.40 × 78,618,170.16
  4. Step 4: Simplify right side
    294,012,126x = 34,669,396,927,533,060
  5. Step 5: Solve for x
    x = 34,669,396,927,533,060/294,012,126
  6. Step 6: Final answer
    x = 117,918,255.27

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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.