Home / 272,904,859.40-409,357,289.10-265,730,405.90

Finding the Fourth Proportional to 272,904,859.40, 409,357,289.10 and 265,730,405.90

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Solution

The fourth proportional to 272,904,859.40, 409,357,289.10 and 265,730,405.90 is: 398,595,608.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,904,859.40 : 409,357,289.10 = 265,730,405.90 : x
  2. Step 2: Convert to fraction form
    272,904,859.40/409,357,289.10 = 265,730,405.90/x
  3. Step 3: Cross multiply
    272,904,859.40x = 409,357,289.10 × 265,730,405.90
  4. Step 4: Simplify right side
    272,904,859.40x = 108,778,678,590,666,656
  5. Step 5: Solve for x
    x = 108,778,678,590,666,656/272,904,859.40
  6. Step 6: Final answer
    x = 398,595,608.85

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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.