Home / 382,281,976.40-573,646,913.40-139,969,374.80

Finding the Fourth Proportional to 382,281,976.40, 573,646,913.40 and 139,969,374.80

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Solution

The fourth proportional to 382,281,976.40, 573,646,913.40 and 139,969,374.80 is: 210,036,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,281,976.40 : 573,646,913.40 = 139,969,374.80 : x
  2. Step 2: Convert to fraction form
    382,281,976.40/573,646,913.40 = 139,969,374.80/x
  3. Step 3: Cross multiply
    382,281,976.40x = 573,646,913.40 × 139,969,374.80
  4. Step 4: Simplify right side
    382,281,976.40x = 80,292,999,824,547,744
  5. Step 5: Solve for x
    x = 80,292,999,824,547,744/382,281,976.40
  6. Step 6: Final answer
    x = 210,036,059.20

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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.