Home / 328,164,001.20-492,246,001.80-85,826,905.20

Finding the Fourth Proportional to 328,164,001.20, 492,246,001.80 and 85,826,905.20

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Solution

The fourth proportional to 328,164,001.20, 492,246,001.80 and 85,826,905.20 is: 128,740,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,164,001.20 : 492,246,001.80 = 85,826,905.20 : x
  2. Step 2: Convert to fraction form
    328,164,001.20/492,246,001.80 = 85,826,905.20/x
  3. Step 3: Cross multiply
    328,164,001.20x = 492,246,001.80 × 85,826,905.20
  4. Step 4: Simplify right side
    328,164,001.20x = 42,247,950,931,567,632
  5. Step 5: Solve for x
    x = 42,247,950,931,567,632/328,164,001.20
  6. Step 6: Final answer
    x = 128,740,357.80

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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.