Home / 209,884,687.65-289,641,875.98-115,798,829.24

Finding the Fourth Proportional to 209,884,687.65, 289,641,875.98 and 115,798,829.24

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Solution

The fourth proportional to 209,884,687.65, 289,641,875.98 and 115,798,829.24 is: 159,802,939.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,884,687.65 : 289,641,875.98 = 115,798,829.24 : x
  2. Step 2: Convert to fraction form
    209,884,687.65/289,641,875.98 = 115,798,829.24/x
  3. Step 3: Cross multiply
    209,884,687.65x = 289,641,875.98 × 115,798,829.24
  4. Step 4: Simplify right side
    209,884,687.65x = 33,540,190,138,013,592
  5. Step 5: Solve for x
    x = 33,540,190,138,013,592/209,884,687.65
  6. Step 6: Final answer
    x = 159,802,939.96

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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.