Home / 209,710,979.60-289,525,293.54-186,441,835.40

Finding the Fourth Proportional to 209,710,979.60, 289,525,293.54 and 186,441,835.40

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Solution

The fourth proportional to 209,710,979.60, 289,525,293.54 and 186,441,835.40 is: 257,400,100.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,710,979.60 : 289,525,293.54 = 186,441,835.40 : x
  2. Step 2: Convert to fraction form
    209,710,979.60/289,525,293.54 = 186,441,835.40/x
  3. Step 3: Cross multiply
    209,710,979.60x = 289,525,293.54 × 186,441,835.40
  4. Step 4: Simplify right side
    209,710,979.60x = 53,979,627,122,321,368
  5. Step 5: Solve for x
    x = 53,979,627,122,321,368/209,710,979.60
  6. Step 6: Final answer
    x = 257,400,100.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.