Home / 402,939,937.60-604,409,906.40-130,338,260.80

Finding the Fourth Proportional to 402,939,937.60, 604,409,906.40 and 130,338,260.80

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Solution

The fourth proportional to 402,939,937.60, 604,409,906.40 and 130,338,260.80 is: 195,507,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,939,937.60 : 604,409,906.40 = 130,338,260.80 : x
  2. Step 2: Convert to fraction form
    402,939,937.60/604,409,906.40 = 130,338,260.80/x
  3. Step 3: Cross multiply
    402,939,937.60x = 604,409,906.40 × 130,338,260.80
  4. Step 4: Simplify right side
    402,939,937.60x = 78,777,736,010,466,784
  5. Step 5: Solve for x
    x = 78,777,736,010,466,784/402,939,937.60
  6. Step 6: Final answer
    x = 195,507,391.20

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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.