Home / 761,007,320.40-1,050,125,960.52-421,924,843.92

Finding the Fourth Proportional to 761,007,320.40, 1,050,125,960.52 and 421,924,843.92

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Solution

The fourth proportional to 761,007,320.40, 1,050,125,960.52 and 421,924,843.92 is: 582,220,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,007,320.40 : 1,050,125,960.52 = 421,924,843.92 : x
  2. Step 2: Convert to fraction form
    761,007,320.40/1,050,125,960.52 = 421,924,843.92/x
  3. Step 3: Cross multiply
    761,007,320.40x = 1,050,125,960.52 × 421,924,843.92
  4. Step 4: Simplify right side
    761,007,320.40x = 443,074,231,988,741,120
  5. Step 5: Solve for x
    x = 443,074,231,988,741,120/761,007,320.40
  6. Step 6: Final answer
    x = 582,220,722.60

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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.