Home / 402,941,625.60-604,263,139.20-130,321,286.40

Finding the Fourth Proportional to 402,941,625.60, 604,263,139.20 and 130,321,286.40

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Solution

The fourth proportional to 402,941,625.60, 604,263,139.20 and 130,321,286.40 is: 195,433,642.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,941,625.60 : 604,263,139.20 = 130,321,286.40 : x
  2. Step 2: Convert to fraction form
    402,941,625.60/604,263,139.20 = 130,321,286.40/x
  3. Step 3: Cross multiply
    402,941,625.60x = 604,263,139.20 × 130,321,286.40
  4. Step 4: Simplify right side
    402,941,625.60x = 78,748,349,624,646,272
  5. Step 5: Solve for x
    x = 78,748,349,624,646,272/402,941,625.60
  6. Step 6: Final answer
    x = 195,433,642.55

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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.