Home / 399,176,903.40-598,765,355.10-291,681,479.40

Finding the Fourth Proportional to 399,176,903.40, 598,765,355.10 and 291,681,479.40

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Solution

The fourth proportional to 399,176,903.40, 598,765,355.10 and 291,681,479.40 is: 437,522,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,176,903.40 : 598,765,355.10 = 291,681,479.40 : x
  2. Step 2: Convert to fraction form
    399,176,903.40/598,765,355.10 = 291,681,479.40/x
  3. Step 3: Cross multiply
    399,176,903.40x = 598,765,355.10 × 291,681,479.40
  4. Step 4: Simplify right side
    399,176,903.40x = 174,648,764,589,034,336
  5. Step 5: Solve for x
    x = 174,648,764,589,034,336/399,176,903.40
  6. Step 6: Final answer
    x = 437,522,219.10

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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.