Home / 719,321,851.70-1,078,982,777.55-486,869,558.30

Finding the Fourth Proportional to 719,321,851.70, 1,078,982,777.55 and 486,869,558.30

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Solution

The fourth proportional to 719,321,851.70, 1,078,982,777.55 and 486,869,558.30 is: 730,304,337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,321,851.70 : 1,078,982,777.55 = 486,869,558.30 : x
  2. Step 2: Convert to fraction form
    719,321,851.70/1,078,982,777.55 = 486,869,558.30/x
  3. Step 3: Cross multiply
    719,321,851.70x = 1,078,982,777.55 × 486,869,558.30
  4. Step 4: Simplify right side
    719,321,851.70x = 525,323,868,319,075,648
  5. Step 5: Solve for x
    x = 525,323,868,319,075,648/719,321,851.70
  6. Step 6: Final answer
    x = 730,304,337.45

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Double scale
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Similar ratio
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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.