Home / 442,878,465.60-664,317,698.40-238,805,121.60

Finding the Fourth Proportional to 442,878,465.60, 664,317,698.40 and 238,805,121.60

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Solution

The fourth proportional to 442,878,465.60, 664,317,698.40 and 238,805,121.60 is: 358,207,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,878,465.60 : 664,317,698.40 = 238,805,121.60 : x
  2. Step 2: Convert to fraction form
    442,878,465.60/664,317,698.40 = 238,805,121.60/x
  3. Step 3: Cross multiply
    442,878,465.60x = 664,317,698.40 × 238,805,121.60
  4. Step 4: Simplify right side
    442,878,465.60x = 158,642,468,747,444,128
  5. Step 5: Solve for x
    x = 158,642,468,747,444,128/442,878,465.60
  6. Step 6: Final answer
    x = 358,207,682.40

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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.