Home / 538,455,465.80-743,125,670.56-315,624,377.71

Finding the Fourth Proportional to 538,455,465.80, 743,125,670.56 and 315,624,377.71

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Solution

The fourth proportional to 538,455,465.80, 743,125,670.56 and 315,624,377.71 is: 435,595,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,455,465.80 : 743,125,670.56 = 315,624,377.71 : x
  2. Step 2: Convert to fraction form
    538,455,465.80/743,125,670.56 = 315,624,377.71/x
  3. Step 3: Cross multiply
    538,455,465.80x = 743,125,670.56 × 315,624,377.71
  4. Step 4: Simplify right side
    538,455,465.80x = 234,548,577,330,826,432
  5. Step 5: Solve for x
    x = 234,548,577,330,826,432/538,455,465.80
  6. Step 6: Final answer
    x = 435,595,127.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.