Home / 139,972,005.20-209,958,007.80-37,746,376.40

Finding the Fourth Proportional to 139,972,005.20, 209,958,007.80 and 37,746,376.40

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Solution

The fourth proportional to 139,972,005.20, 209,958,007.80 and 37,746,376.40 is: 56,619,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,972,005.20 : 209,958,007.80 = 37,746,376.40 : x
  2. Step 2: Convert to fraction form
    139,972,005.20/209,958,007.80 = 37,746,376.40/x
  3. Step 3: Cross multiply
    139,972,005.20x = 209,958,007.80 × 37,746,376.40
  4. Step 4: Simplify right side
    139,972,005.20x = 7,925,153,990,612,936
  5. Step 5: Solve for x
    x = 7,925,153,990,612,936/139,972,005.20
  6. Step 6: Final answer
    x = 56,619,564.60

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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.