Home / 139,515,320.40-209,272,980.60-109,249,054.80

Finding the Fourth Proportional to 139,515,320.40, 209,272,980.60 and 109,249,054.80

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Solution

The fourth proportional to 139,515,320.40, 209,272,980.60 and 109,249,054.80 is: 163,873,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,515,320.40 : 209,272,980.60 = 109,249,054.80 : x
  2. Step 2: Convert to fraction form
    139,515,320.40/209,272,980.60 = 109,249,054.80/x
  3. Step 3: Cross multiply
    139,515,320.40x = 209,272,980.60 × 109,249,054.80
  4. Step 4: Simplify right side
    139,515,320.40x = 22,862,875,325,728,736
  5. Step 5: Solve for x
    x = 22,862,875,325,728,736/139,515,320.40
  6. Step 6: Final answer
    x = 163,873,582.20

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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.