Home / 399,176,912.40-598,765,368.60-291,681,488.40

Finding the Fourth Proportional to 399,176,912.40, 598,765,368.60 and 291,681,488.40

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Solution

The fourth proportional to 399,176,912.40, 598,765,368.60 and 291,681,488.40 is: 437,522,232.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,176,912.40 : 598,765,368.60 = 291,681,488.40 : x
  2. Step 2: Convert to fraction form
    399,176,912.40/598,765,368.60 = 291,681,488.40/x
  3. Step 3: Cross multiply
    399,176,912.40x = 598,765,368.60 × 291,681,488.40
  4. Step 4: Simplify right side
    399,176,912.40x = 174,648,773,915,622,624
  5. Step 5: Solve for x
    x = 174,648,773,915,622,624/399,176,912.40
  6. Step 6: Final answer
    x = 437,522,232.60

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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.