Home / 390,722,141.80-586,083,212.70-99,588,701.80

Finding the Fourth Proportional to 390,722,141.80, 586,083,212.70 and 99,588,701.80

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Solution

The fourth proportional to 390,722,141.80, 586,083,212.70 and 99,588,701.80 is: 149,383,052.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,722,141.80 : 586,083,212.70 = 99,588,701.80 : x
  2. Step 2: Convert to fraction form
    390,722,141.80/586,083,212.70 = 99,588,701.80/x
  3. Step 3: Cross multiply
    390,722,141.80x = 586,083,212.70 × 99,588,701.80
  4. Step 4: Simplify right side
    390,722,141.80x = 58,367,266,299,566,272
  5. Step 5: Solve for x
    x = 58,367,266,299,566,272/390,722,141.80
  6. Step 6: Final answer
    x = 149,383,052.70

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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.