Home / 391,203,032.40-586,804,548.60-361,641,790.80

Finding the Fourth Proportional to 391,203,032.40, 586,804,548.60 and 361,641,790.80

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Solution

The fourth proportional to 391,203,032.40, 586,804,548.60 and 361,641,790.80 is: 542,462,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,203,032.40 : 586,804,548.60 = 361,641,790.80 : x
  2. Step 2: Convert to fraction form
    391,203,032.40/586,804,548.60 = 361,641,790.80/x
  3. Step 3: Cross multiply
    391,203,032.40x = 586,804,548.60 × 361,641,790.80
  4. Step 4: Simplify right side
    391,203,032.40x = 212,213,047,805,289,664
  5. Step 5: Solve for x
    x = 212,213,047,805,289,664/391,203,032.40
  6. Step 6: Final answer
    x = 542,462,686.20

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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.