Home / 774,336,465.04-1,068,584,475.53-421,912,455.75

Finding the Fourth Proportional to 774,336,465.04, 1,068,584,475.53 and 421,912,455.75

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Solution

The fourth proportional to 774,336,465.04, 1,068,584,475.53 and 421,912,455.75 is: 582,239,272.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,336,465.04 : 1,068,584,475.53 = 421,912,455.75 : x
  2. Step 2: Convert to fraction form
    774,336,465.04/1,068,584,475.53 = 421,912,455.75/x
  3. Step 3: Cross multiply
    774,336,465.04x = 1,068,584,475.53 × 421,912,455.75
  4. Step 4: Simplify right side
    774,336,465.04x = 450,849,100,252,327,424
  5. Step 5: Solve for x
    x = 450,849,100,252,327,424/774,336,465.04
  6. Step 6: Final answer
    x = 582,239,272.73

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1.5x scale

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.